initial commit

2026-03-25 17:34:37 -03:00
commit f9c7582e4d
52 changed files with 7022 additions and 0 deletions
--- a/packages/frontend/.gitignore
+++ b/packages/frontend/.gitignore
@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
--- a/packages/frontend/index.html
+++ b/packages/frontend/index.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>frontend</title>
+  </head>
+  <body>
+    <div id="app"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>
--- a/packages/frontend/package.json
+++ b/packages/frontend/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "frontend",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "preact": "^10.29.0"
+  },
+  "devDependencies": {
+    "@preact/preset-vite": "^2.10.4",
+    "@types/node": "^24.12.0",
+    "typescript": "~5.9.3",
+    "vite": "^8.0.1"
+  }
+}
--- a/packages/frontend/public/favicon.svg
+++ b/packages/frontend/public/favicon.svg
--- a/packages/frontend/public/icons.svg
+++ b/packages/frontend/public/icons.svg
@@ -0,0 +1,24 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+  <symbol id="bluesky-icon" viewBox="0 0 16 17">
+    <g clip-path="url(#bluesky-clip)"><path fill="#08060d" d="M7.75 7.735c-.693-1.348-2.58-3.86-4.334-5.097-1.68-1.187-2.32-.981-2.74-.79C.188 2.065.1 2.812.1 3.251s.241 3.602.398 4.13c.52 1.744 2.367 2.333 4.07 2.145-2.495.37-4.71 1.278-1.805 4.512 3.196 3.309 4.38-.71 4.987-2.746.608 2.036 1.307 5.91 4.93 2.746 2.72-2.746.747-4.143-1.747-4.512 1.702.189 3.55-.4 4.07-2.145.156-.528.397-3.691.397-4.13s-.088-1.186-.575-1.406c-.42-.19-1.06-.395-2.741.79-1.755 1.24-3.64 3.752-4.334 5.099"/></g>
+    <defs><clipPath id="bluesky-clip"><path fill="#fff" d="M.1.85h15.3v15.3H.1z"/></clipPath></defs>
+  </symbol>
+  <symbol id="discord-icon" viewBox="0 0 20 19">
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+  <symbol id="documentation-icon" viewBox="0 0 21 20">
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+  </symbol>
+  <symbol id="github-icon" viewBox="0 0 19 19">
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+  </symbol>
+  <symbol id="social-icon" viewBox="0 0 20 20">
+    <path fill="none" stroke="#aa3bff" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.35" d="M12.5 6.667a4.167 4.167 0 1 0-8.334 0 4.167 4.167 0 0 0 8.334 0"/>
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+  </symbol>
+  <symbol id="x-icon" viewBox="0 0 19 19">
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+  </symbol>
+</svg>
--- a/packages/frontend/src/api/client.ts
+++ b/packages/frontend/src/api/client.ts
@@ -0,0 +1,54 @@
+import type { Recommendation, RecommendationSummary, FeedbackEntry } from '../types/index.js';
+
+const BASE = '/api';
+
+async function request<T>(path: string, options?: RequestInit): Promise<T> {
+  const res = await fetch(`${BASE}${path}`, {
+    headers: { 'Content-Type': 'application/json' },
+    ...options,
+  });
+  if (!res.ok) {
+    const text = await res.text();
+    throw new Error(`HTTP ${res.status}: ${text}`);
+  }
+  return res.json() as Promise<T>;
+}
+
+export function createRecommendation(body: {
+  main_prompt: string;
+  liked_shows: string;
+  disliked_shows: string;
+  themes: string;
+}): Promise<{ id: string }> {
+  return request('/recommendations', {
+    method: 'POST',
+    body: JSON.stringify(body),
+  });
+}
+
+export function listRecommendations(): Promise<RecommendationSummary[]> {
+  return request('/recommendations');
+}
+
+export function getRecommendation(id: string): Promise<Recommendation> {
+  return request(`/recommendations/${id}`);
+}
+
+export function rerankRecommendation(id: string): Promise<{ ok: boolean }> {
+  return request(`/recommendations/${id}/rerank`, { method: 'POST' });
+}
+
+export function submitFeedback(body: {
+  tv_show_name: string;
+  stars: number;
+  feedback?: string;
+}): Promise<{ ok: boolean }> {
+  return request('/feedback', {
+    method: 'POST',
+    body: JSON.stringify(body),
+  });
+}
+
+export function getFeedback(): Promise<FeedbackEntry[]> {
+  return request('/feedback');
+}
--- a/packages/frontend/src/app.css
+++ b/packages/frontend/src/app.css
@@ -0,0 +1 @@
+/* App-level styles are in index.css */
--- a/packages/frontend/src/app.tsx
+++ b/packages/frontend/src/app.tsx
@@ -0,0 +1,5 @@
+import { Home } from './pages/Home.js';
+
+export function App() {
+  return <Home />;
+}
--- a/packages/frontend/src/assets/hero.png
+++ b/packages/frontend/src/assets/hero.png
--- a/packages/frontend/src/assets/preact.svg
+++ b/packages/frontend/src/assets/preact.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="27.68" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 296"><path fill="#673AB8" d="m128 0l128 73.9v147.8l-128 73.9L0 221.7V73.9z"></path><path fill="#FFF" d="M34.865 220.478c17.016 21.78 71.095 5.185 122.15-34.704c51.055-39.888 80.24-88.345 63.224-110.126c-17.017-21.78-71.095-5.184-122.15 34.704c-51.055 39.89-80.24 88.346-63.224 110.126Zm7.27-5.68c-5.644-7.222-3.178-21.402 7.573-39.253c11.322-18.797 30.541-39.548 54.06-57.923c23.52-18.375 48.303-32.004 69.281-38.442c19.922-6.113 34.277-5.075 39.92 2.148c5.644 7.223 3.178 21.403-7.573 39.254c-11.322 18.797-30.541 39.547-54.06 57.923c-23.52 18.375-48.304 32.004-69.281 38.441c-19.922 6.114-34.277 5.076-39.92-2.147Z"></path><path fill="#FFF" d="M220.239 220.478c17.017-21.78-12.169-70.237-63.224-110.126C105.96 70.464 51.88 53.868 34.865 75.648c-17.017 21.78 12.169 70.238 63.224 110.126c51.055 39.889 105.133 56.485 122.15 34.704Zm-7.27-5.68c-5.643 7.224-19.998 8.262-39.92 2.148c-20.978-6.437-45.761-20.066-69.28-38.441c-23.52-18.376-42.74-39.126-54.06-57.923c-10.752-17.851-13.218-32.03-7.575-39.254c5.644-7.223 19.999-8.261 39.92-2.148c20.978 6.438 45.762 20.067 69.281 38.442c23.52 18.375 42.739 39.126 54.06 57.923c10.752 17.85 13.218 32.03 7.574 39.254Z"></path><path fill="#FFF" d="M127.552 167.667c10.827 0 19.603-8.777 19.603-19.604c0-10.826-8.776-19.603-19.603-19.603c-10.827 0-19.604 8.777-19.604 19.603c0 10.827 8.777 19.604 19.604 19.604Z"></path></svg>
--- a/packages/frontend/src/assets/vite.svg
+++ b/packages/frontend/src/assets/vite.svg
--- a/packages/frontend/src/components/NewRecommendationModal.tsx
+++ b/packages/frontend/src/components/NewRecommendationModal.tsx
@@ -0,0 +1,115 @@
+import { useState } from 'preact/hooks';
+
+interface NewRecommendationModalProps {
+  onClose: () => void;
+  onSubmit: (body: {
+    main_prompt: string;
+    liked_shows: string;
+    disliked_shows: string;
+    themes: string;
+  }) => Promise<void>;
+}
+
+export function NewRecommendationModal({ onClose, onSubmit }: NewRecommendationModalProps) {
+  const [mainPrompt, setMainPrompt] = useState('');
+  const [likedShows, setLikedShows] = useState('');
+  const [dislikedShows, setDislikedShows] = useState('');
+  const [themes, setThemes] = useState('');
+  const [loading, setLoading] = useState(false);
+
+  const handleSubmit = async (e: Event) => {
+    e.preventDefault();
+    if (!mainPrompt.trim()) return;
+    setLoading(true);
+    try {
+      await onSubmit({
+        main_prompt: mainPrompt.trim(),
+        liked_shows: likedShows.trim(),
+        disliked_shows: dislikedShows.trim(),
+        themes: themes.trim(),
+      });
+      onClose();
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleBackdropClick = (e: MouseEvent) => {
+    if ((e.target as HTMLElement).classList.contains('modal-backdrop')) {
+      onClose();
+    }
+  };
+
+  return (
+    <div class="modal-backdrop" onClick={handleBackdropClick}>
+      <div class="modal">
+        <div class="modal-header">
+          <h2>New Recommendation</h2>
+          <button class="modal-close" onClick={onClose} aria-label="Close">×</button>
+        </div>
+
+        <form class="modal-form" onSubmit={handleSubmit}>
+          <div class="form-group">
+            <label for="main-prompt">What are you looking for?</label>
+            <textarea
+              id="main-prompt"
+              class="form-textarea"
+              placeholder="Describe what you want to watch. Be as specific as you like — mood, themes, setting, what you've enjoyed before..."
+              value={mainPrompt}
+              onInput={(e) => setMainPrompt((e.target as HTMLTextAreaElement).value)}
+              rows={5}
+              required
+            />
+          </div>
+
+          <div class="form-row">
+            <div class="form-group">
+              <label for="liked-shows">Shows you liked</label>
+              <input
+                id="liked-shows"
+                type="text"
+                class="form-input"
+                placeholder="e.g. Breaking Bad, The Wire"
+                value={likedShows}
+                onInput={(e) => setLikedShows((e.target as HTMLInputElement).value)}
+              />
+            </div>
+
+            <div class="form-group">
+              <label for="disliked-shows">Shows you disliked</label>
+              <input
+                id="disliked-shows"
+                type="text"
+                class="form-input"
+                placeholder="e.g. Game of Thrones"
+                value={dislikedShows}
+                onInput={(e) => setDislikedShows((e.target as HTMLInputElement).value)}
+              />
+            </div>
+          </div>
+
+          <div class="form-group">
+            <label for="themes">Themes and requirements</label>
+            <input
+              id="themes"
+              type="text"
+              class="form-input"
+              placeholder="e.g. dramatic setting, historical, sci-fi, etc."
+              value={themes}
+              onInput={(e) => setThemes((e.target as HTMLInputElement).value)}
+            />
+          </div>
+
+          <div class="modal-actions">
+            <button type="button" class="btn-secondary" onClick={onClose} disabled={loading}>
+              Cancel
+            </button>
+            <button type="submit" class="btn-primary" disabled={loading || !mainPrompt.trim()}>
+              {loading ? 'Starting…' : 'Get Recommendations'}
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}
--- a/packages/frontend/src/components/PipelineProgress.tsx
+++ b/packages/frontend/src/components/PipelineProgress.tsx
@@ -0,0 +1,41 @@
+import type { StageMap, StageStatus } from '../types/index.js';
+
+const STAGES: { key: keyof StageMap; label: string }[] = [
+  { key: 'interpreter', label: 'Interpreting Preferences' },
+  { key: 'retrieval', label: 'Generating Candidates' },
+  { key: 'ranking', label: 'Ranking Shows' },
+  { key: 'curator', label: 'Curating Results' },
+];
+
+interface PipelineProgressProps {
+  stages: StageMap;
+}
+
+function StageIcon({ status }: { status: StageStatus }) {
+  switch (status) {
+    case 'done':
+      return <span class="stage-icon stage-done">✓</span>;
+    case 'error':
+      return <span class="stage-icon stage-error">✗</span>;
+    case 'running':
+      return <span class="stage-icon stage-running spinner">⟳</span>;
+    default:
+      return <span class="stage-icon stage-pending">○</span>;
+  }
+}
+
+export function PipelineProgress({ stages }: PipelineProgressProps) {
+  return (
+    <div class="pipeline-progress">
+      <h3 class="pipeline-title">Generating Recommendations…</h3>
+      <ul class="pipeline-steps">
+        {STAGES.map(({ key, label }) => (
+          <li key={key} class={`pipeline-step pipeline-step--${stages[key]}`}>
+            <StageIcon status={stages[key]} />
+            <span class="pipeline-step-label">{label}</span>
+          </li>
+        ))}
+      </ul>
+    </div>
+  );
+}
--- a/packages/frontend/src/components/RecommendationCard.tsx
+++ b/packages/frontend/src/components/RecommendationCard.tsx
@@ -0,0 +1,85 @@
+import { useState } from 'preact/hooks';
+import type { CuratorOutput, CuratorCategory } from '../types/index.js';
+
+interface RecommendationCardProps {
+  show: CuratorOutput;
+  existingFeedback?: { stars: number; feedback: string };
+  onFeedback: (tv_show_name: string, stars: number, feedback: string) => Promise<void>;
+}
+
+const CATEGORY_COLORS: Record<CuratorCategory, string> = {
+  'Definitely Like': 'badge-green',
+  'Might Like': 'badge-blue',
+  'Questionable': 'badge-yellow',
+  'Will Not Like': 'badge-red',
+};
+
+export function RecommendationCard({ show, existingFeedback, onFeedback }: RecommendationCardProps) {
+  const [selectedStars, setSelectedStars] = useState(existingFeedback?.stars ?? 0);
+  const [comment, setComment] = useState(existingFeedback?.feedback ?? '');
+  const [showComment, setShowComment] = useState(false);
+  const [submitted, setSubmitted] = useState(!!existingFeedback);
+  const [saving, setSaving] = useState(false);
+
+  const handleStarClick = (stars: number) => {
+    setSelectedStars(stars);
+    setShowComment(true);
+  };
+
+  const handleSubmit = async () => {
+    if (!selectedStars) return;
+    setSaving(true);
+    try {
+      await onFeedback(show.title, selectedStars, comment);
+      setSubmitted(true);
+      setShowComment(false);
+    } finally {
+      setSaving(false);
+    }
+  };
+
+  return (
+    <div class="card">
+      <div class="card-header">
+        <span class={`badge ${CATEGORY_COLORS[show.category]}`}>{show.category}</span>
+        <h3 class="card-title">{show.title}</h3>
+      </div>
+      <p class="card-explanation">{show.explanation}</p>
+
+      <div class="card-feedback">
+        <div class="star-rating">
+          {[1, 2, 3].map((star) => (
+            <button
+              key={star}
+              class={`star-btn${selectedStars >= star ? ' star-active' : ''}`}
+              onClick={() => handleStarClick(star)}
+              aria-label={`Rate ${star} star${star > 1 ? 's' : ''}`}
+            >
+              {selectedStars >= star ? '★' : '☆'}
+            </button>
+          ))}
+          {submitted && <span class="feedback-saved">Saved</span>}
+        </div>
+
+        {showComment && !submitted && (
+          <div class="comment-area">
+            <textarea
+              class="form-textarea comment-input"
+              placeholder="Optional comment…"
+              value={comment}
+              onInput={(e) => setComment((e.target as HTMLTextAreaElement).value)}
+              rows={2}
+            />
+            <button
+              class="btn-primary btn-sm"
+              onClick={handleSubmit}
+              disabled={saving || !selectedStars}
+            >
+              {saving ? 'Saving…' : 'Save Feedback'}
+            </button>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}
--- a/packages/frontend/src/components/Sidebar.tsx
+++ b/packages/frontend/src/components/Sidebar.tsx
@@ -0,0 +1,60 @@
+import type { RecommendationSummary } from '../types/index.js';
+
+interface SidebarProps {
+  list: RecommendationSummary[];
+  selectedId: string | null;
+  onSelect: (id: string) => void;
+  onNewClick: () => void;
+}
+
+function statusIcon(status: RecommendationSummary['status']): string {
+  switch (status) {
+    case 'done': return '✓';
+    case 'error': return '✗';
+    case 'running': return '⟳';
+    default: return '…';
+  }
+}
+
+function statusClass(status: RecommendationSummary['status']): string {
+  switch (status) {
+    case 'done': return 'status-done';
+    case 'error': return 'status-error';
+    case 'running': return 'status-running';
+    default: return 'status-pending';
+  }
+}
+
+export function Sidebar({ list, selectedId, onSelect, onNewClick }: SidebarProps) {
+  return (
+    <aside class="sidebar">
+      <div class="sidebar-header">
+        <span class="sidebar-title">Recommender</span>
+      </div>
+
+      <button class="btn-new" onClick={onNewClick}>
+        + New Recommendation
+      </button>
+
+      <div class="sidebar-section-label">History</div>
+
+      <ul class="sidebar-list">
+        {list.length === 0 && (
+          <li class="sidebar-empty">No recommendations yet</li>
+        )}
+        {list.map((item) => (
+          <li
+            key={item.id}
+            class={`sidebar-item${selectedId === item.id ? ' selected' : ''}`}
+            onClick={() => onSelect(item.id)}
+          >
+            <span class={`sidebar-icon ${statusClass(item.status)}`}>
+              {statusIcon(item.status)}
+            </span>
+            <span class="sidebar-item-title">{item.title}</span>
+          </li>
+        ))}
+      </ul>
+    </aside>
+  );
+}
--- a/packages/frontend/src/hooks/useRecommendations.ts
+++ b/packages/frontend/src/hooks/useRecommendations.ts
@@ -0,0 +1,83 @@
+import { useState, useEffect, useCallback } from 'preact/hooks';
+import type { RecommendationSummary, FeedbackEntry } from '../types/index.js';
+import {
+  listRecommendations,
+  createRecommendation,
+  rerankRecommendation,
+  submitFeedback,
+  getFeedback,
+} from '../api/client.js';
+
+export function useRecommendations() {
+  const [list, setList] = useState<RecommendationSummary[]>([]);
+  const [selectedId, setSelectedId] = useState<string | null>(null);
+  const [feedback, setFeedback] = useState<FeedbackEntry[]>([]);
+
+  const refreshList = useCallback(async () => {
+    const rows = await listRecommendations();
+    setList(rows);
+  }, []);
+
+  const refreshFeedback = useCallback(async () => {
+    const rows = await getFeedback();
+    setFeedback(rows);
+  }, []);
+
+  useEffect(() => {
+    void refreshList();
+    void refreshFeedback();
+  }, [refreshList, refreshFeedback]);
+
+  const createNew = useCallback(
+    async (body: {
+      main_prompt: string;
+      liked_shows: string;
+      disliked_shows: string;
+      themes: string;
+    }) => {
+      const { id } = await createRecommendation(body);
+      await refreshList();
+      setSelectedId(id);
+      return id;
+    },
+    [refreshList],
+  );
+
+  const rerank = useCallback(
+    async (id: string) => {
+      await rerankRecommendation(id);
+      // Update local list to show pending status
+      setList((prev) =>
+        prev.map((r) => (r.id === id ? { ...r, status: 'pending' as const } : r)),
+      );
+    },
+    [],
+  );
+
+  const handleSubmitFeedback = useCallback(
+    async (body: { tv_show_name: string; stars: number; feedback?: string }) => {
+      await submitFeedback(body);
+      await refreshFeedback();
+    },
+    [refreshFeedback],
+  );
+
+  const updateStatus = useCallback(
+    (id: string, status: RecommendationSummary['status']) => {
+      setList((prev) => prev.map((r) => (r.id === id ? { ...r, status } : r)));
+    },
+    [],
+  );
+
+  return {
+    list,
+    selectedId,
+    feedback,
+    setSelectedId,
+    createNew,
+    rerank,
+    submitFeedback: handleSubmitFeedback,
+    updateStatus,
+    refreshList,
+  };
+}
--- a/packages/frontend/src/hooks/useSSE.ts
+++ b/packages/frontend/src/hooks/useSSE.ts
@@ -0,0 +1,49 @@
+import { useEffect, useRef } from 'preact/hooks';
+import type { SSEEvent } from '../types/index.js';
+
+export function useSSE(
+  url: string | null,
+  onEvent: (event: SSEEvent) => void,
+): { close: () => void } {
+  const esRef = useRef<EventSource | null>(null);
+  const onEventRef = useRef(onEvent);
+  onEventRef.current = onEvent;
+
+  useEffect(() => {
+    if (!url) return;
+
+    const es = new EventSource(url);
+    esRef.current = es;
+
+    es.onmessage = (e: MessageEvent) => {
+      try {
+        const event = JSON.parse(e.data as string) as SSEEvent;
+        onEventRef.current(event);
+
+        if (event.stage === 'complete' || event.status === 'error') {
+          es.close();
+          esRef.current = null;
+        }
+      } catch {
+        // ignore parse errors
+      }
+    };
+
+    es.onerror = () => {
+      es.close();
+      esRef.current = null;
+    };
+
+    return () => {
+      es.close();
+      esRef.current = null;
+    };
+  }, [url]);
+
+  return {
+    close: () => {
+      esRef.current?.close();
+      esRef.current = null;
+    },
+  };
+}
--- a/packages/frontend/src/index.css
+++ b/packages/frontend/src/index.css
@@ -0,0 +1,558 @@
+*, *::before, *::after {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
+
+:root {
+  --bg: #0f1117;
+  --bg-surface: #1a1d27;
+  --bg-surface-2: #222535;
+  --bg-surface-3: #2a2e42;
+  --border: #2e3248;
+  --text: #e2e4ed;
+  --text-muted: #8a8fa8;
+  --text-dim: #5a5f77;
+  --accent: #6366f1;
+  --accent-hover: #4f52d9;
+  --accent-dim: rgba(99, 102, 241, 0.15);
+  --green: #22c55e;
+  --blue: #3b82f6;
+  --yellow: #eab308;
+  --red: #ef4444;
+  --radius: 8px;
+  --radius-sm: 4px;
+  --sidebar-width: 260px;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  font-size: 14px;
+  color: var(--text);
+  background: var(--bg);
+  -webkit-font-smoothing: antialiased;
+}
+
+html, body, #app {
+  height: 100%;
+  width: 100%;
+  overflow: hidden;
+}
+
+/* ── Layout ────────────────────────────────────────────── */
+
+.layout {
+  display: flex;
+  height: 100vh;
+  overflow: hidden;
+}
+
+.main-content {
+  flex: 1;
+  overflow-y: auto;
+  padding: 32px;
+}
+
+/* ── Sidebar ────────────────────────────────────────────── */
+
+.sidebar {
+  width: var(--sidebar-width);
+  background: var(--bg-surface);
+  border-right: 1px solid var(--border);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  flex-shrink: 0;
+}
+
+.sidebar-header {
+  padding: 20px 16px 12px;
+  border-bottom: 1px solid var(--border);
+}
+
+.sidebar-title {
+  font-size: 16px;
+  font-weight: 700;
+  color: var(--text);
+  letter-spacing: -0.3px;
+}
+
+.btn-new {
+  margin: 12px;
+  padding: 10px 14px;
+  background: var(--accent);
+  color: #fff;
+  border: none;
+  border-radius: var(--radius);
+  font-size: 13px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 0.15s;
+  text-align: left;
+}
+
+.btn-new:hover {
+  background: var(--accent-hover);
+}
+
+.sidebar-section-label {
+  padding: 8px 16px 4px;
+  font-size: 11px;
+  font-weight: 600;
+  letter-spacing: 0.06em;
+  text-transform: uppercase;
+  color: var(--text-dim);
+}
+
+.sidebar-list {
+  list-style: none;
+  overflow-y: auto;
+  flex: 1;
+  padding: 4px 8px 8px;
+}
+
+.sidebar-empty {
+  padding: 8px;
+  color: var(--text-dim);
+  font-size: 13px;
+}
+
+.sidebar-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 10px;
+  border-radius: var(--radius-sm);
+  cursor: pointer;
+  color: var(--text-muted);
+  font-size: 13px;
+  transition: background 0.1s, color 0.1s;
+  user-select: none;
+}
+
+.sidebar-item:hover {
+  background: var(--bg-surface-2);
+  color: var(--text);
+}
+
+.sidebar-item.selected {
+  background: var(--accent-dim);
+  color: var(--text);
+}
+
+.sidebar-icon {
+  font-size: 12px;
+  width: 16px;
+  text-align: center;
+  flex-shrink: 0;
+}
+
+.status-done { color: var(--green); }
+.status-error { color: var(--red); }
+.status-running { color: var(--accent); }
+.status-pending { color: var(--text-dim); }
+
+.sidebar-item-title {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+/* ── Main content areas ─────────────────────────────────── */
+
+.empty-state {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  height: 100%;
+  gap: 12px;
+  color: var(--text-muted);
+  text-align: center;
+}
+
+.empty-state h2 {
+  font-size: 24px;
+  font-weight: 700;
+  color: var(--text);
+}
+
+.content-area {
+  max-width: 860px;
+  margin: 0 auto;
+}
+
+.rec-title {
+  font-size: 20px;
+  font-weight: 700;
+  color: var(--text);
+  margin-bottom: 24px;
+}
+
+.error-state {
+  color: var(--text-muted);
+}
+
+.error-state h2 {
+  color: var(--red);
+  margin-bottom: 8px;
+}
+
+.error-state p {
+  margin-bottom: 16px;
+}
+
+/* ── Pipeline Progress ──────────────────────────────────── */
+
+.pipeline-progress {
+  padding: 40px 0;
+}
+
+.pipeline-title {
+  font-size: 18px;
+  font-weight: 600;
+  color: var(--text);
+  margin-bottom: 24px;
+}
+
+.pipeline-steps {
+  list-style: none;
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.pipeline-step {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 12px 16px;
+  background: var(--bg-surface);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  font-size: 14px;
+}
+
+.pipeline-step--running {
+  border-color: var(--accent);
+  background: var(--accent-dim);
+}
+
+.pipeline-step--done {
+  border-color: rgba(34, 197, 94, 0.3);
+  background: rgba(34, 197, 94, 0.05);
+}
+
+.pipeline-step--error {
+  border-color: rgba(239, 68, 68, 0.3);
+  background: rgba(239, 68, 68, 0.05);
+}
+
+.stage-icon {
+  font-size: 16px;
+  width: 20px;
+  text-align: center;
+}
+
+.stage-done { color: var(--green); }
+.stage-error { color: var(--red); }
+.stage-running { color: var(--accent); }
+.stage-pending { color: var(--text-dim); }
+
+.spinner {
+  display: inline-block;
+  animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+  from { transform: rotate(0deg); }
+  to { transform: rotate(360deg); }
+}
+
+.pipeline-step-label {
+  font-weight: 500;
+}
+
+/* ── Cards ─────────────────────────────────────────────── */
+
+.cards-grid {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  margin-bottom: 32px;
+}
+
+.card {
+  background: var(--bg-surface);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  padding: 16px;
+  transition: border-color 0.15s;
+}
+
+.card:hover {
+  border-color: var(--bg-surface-3);
+}
+
+.card-header {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-bottom: 8px;
+  flex-wrap: wrap;
+}
+
+.badge {
+  font-size: 11px;
+  font-weight: 600;
+  padding: 2px 8px;
+  border-radius: 100px;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+  flex-shrink: 0;
+}
+
+.badge-green { background: rgba(34,197,94,0.15); color: #4ade80; }
+.badge-blue  { background: rgba(59,130,246,0.15); color: #60a5fa; }
+.badge-yellow{ background: rgba(234,179,8,0.15);  color: #facc15; }
+.badge-red   { background: rgba(239,68,68,0.15);  color: #f87171; }
+
+.card-title {
+  font-size: 16px;
+  font-weight: 600;
+  color: var(--text);
+}
+
+.card-explanation {
+  font-size: 13px;
+  color: var(--text-muted);
+  line-height: 1.5;
+  margin-bottom: 12px;
+}
+
+.card-feedback {
+  border-top: 1px solid var(--border);
+  padding-top: 10px;
+}
+
+.star-rating {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+}
+
+.star-btn {
+  background: none;
+  border: none;
+  cursor: pointer;
+  font-size: 18px;
+  color: var(--text-dim);
+  padding: 0 2px;
+  transition: color 0.1s, transform 0.1s;
+}
+
+.star-btn:hover,
+.star-btn.star-active {
+  color: var(--yellow);
+}
+
+.star-btn:hover {
+  transform: scale(1.1);
+}
+
+.feedback-saved {
+  margin-left: 8px;
+  font-size: 12px;
+  color: var(--green);
+  font-weight: 500;
+}
+
+.comment-area {
+  margin-top: 8px;
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.comment-input {
+  font-size: 13px;
+  resize: vertical;
+}
+
+/* ── Rerank Button ──────────────────────────────────────── */
+
+.rerank-section {
+  padding: 16px 0 32px;
+  display: flex;
+  justify-content: center;
+}
+
+.btn-rerank {
+  padding: 12px 28px;
+  background: var(--bg-surface-2);
+  color: var(--text);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  font-size: 14px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 0.15s, border-color 0.15s;
+}
+
+.btn-rerank:hover:not(:disabled) {
+  background: var(--bg-surface-3);
+  border-color: var(--accent);
+  color: var(--accent);
+}
+
+.btn-rerank:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
+/* ── Buttons ────────────────────────────────────────────── */
+
+.btn-primary {
+  padding: 10px 20px;
+  background: var(--accent);
+  color: #fff;
+  border: none;
+  border-radius: var(--radius);
+  font-size: 14px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 0.15s;
+}
+
+.btn-primary:hover:not(:disabled) {
+  background: var(--accent-hover);
+}
+
+.btn-primary:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.btn-primary.btn-sm {
+  padding: 6px 14px;
+  font-size: 13px;
+}
+
+.btn-secondary {
+  padding: 10px 20px;
+  background: var(--bg-surface-2);
+  color: var(--text-muted);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  font-size: 14px;
+  font-weight: 500;
+  cursor: pointer;
+  transition: background 0.15s;
+}
+
+.btn-secondary:hover:not(:disabled) {
+  background: var(--bg-surface-3);
+}
+
+/* ── Modal ──────────────────────────────────────────────── */
+
+.modal-backdrop {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.6);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 100;
+  backdrop-filter: blur(2px);
+}
+
+.modal {
+  background: var(--bg-surface);
+  border: 1px solid var(--border);
+  border-radius: 12px;
+  width: 540px;
+  max-width: 96vw;
+  max-height: 90vh;
+  overflow-y: auto;
+  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
+}
+
+.modal-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 20px 20px 0;
+}
+
+.modal-header h2 {
+  font-size: 18px;
+  font-weight: 700;
+}
+
+.modal-close {
+  background: none;
+  border: none;
+  font-size: 22px;
+  color: var(--text-muted);
+  cursor: pointer;
+  line-height: 1;
+  padding: 0;
+}
+
+.modal-close:hover {
+  color: var(--text);
+}
+
+.modal-form {
+  padding: 20px;
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
+
+.form-group {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  flex: 1;
+}
+
+.form-group label {
+  font-size: 13px;
+  font-weight: 500;
+  color: var(--text-muted);
+}
+
+.form-row {
+  display: flex;
+  gap: 12px;
+}
+
+.form-input,
+.form-textarea {
+  background: var(--bg-surface-2);
+  border: 1px solid var(--border);
+  border-radius: var(--radius-sm);
+  color: var(--text);
+  font-size: 14px;
+  padding: 10px 12px;
+  outline: none;
+  transition: border-color 0.15s;
+  font-family: inherit;
+  width: 100%;
+}
+
+.form-input:focus,
+.form-textarea:focus {
+  border-color: var(--accent);
+}
+
+.form-textarea {
+  resize: vertical;
+  min-height: 80px;
+}
+
+.modal-actions {
+  display: flex;
+  justify-content: flex-end;
+  gap: 10px;
+  padding-top: 4px;
+}
--- a/packages/frontend/src/main.tsx
+++ b/packages/frontend/src/main.tsx
@@ -0,0 +1,5 @@
+import { render } from 'preact'
+import './index.css'
+import { App } from './app.tsx'
+
+render(<App />, document.getElementById('app')!)
--- a/packages/frontend/src/pages/Home.tsx
+++ b/packages/frontend/src/pages/Home.tsx
@@ -0,0 +1,192 @@
+import { useState, useCallback, useEffect } from 'preact/hooks';
+import { Sidebar } from '../components/Sidebar.js';
+import { NewRecommendationModal } from '../components/NewRecommendationModal.js';
+import { PipelineProgress } from '../components/PipelineProgress.js';
+import { RecommendationCard } from '../components/RecommendationCard.js';
+import { useRecommendations } from '../hooks/useRecommendations.js';
+import { useSSE } from '../hooks/useSSE.js';
+import { getRecommendation } from '../api/client.js';
+import type { Recommendation, SSEEvent, StageMap, PipelineStage } from '../types/index.js';
+
+const DEFAULT_STAGES: StageMap = {
+  interpreter: 'pending',
+  retrieval: 'pending',
+  ranking: 'pending',
+  curator: 'pending',
+};
+
+const STAGE_ORDER: (keyof StageMap)[] = ['interpreter', 'retrieval', 'ranking', 'curator'];
+
+export function Home() {
+  const {
+    list,
+    selectedId,
+    feedback,
+    setSelectedId,
+    createNew,
+    rerank,
+    submitFeedback,
+    updateStatus,
+    refreshList,
+  } = useRecommendations();
+
+  const [showModal, setShowModal] = useState(false);
+  const [selectedRec, setSelectedRec] = useState<Recommendation | null>(null);
+  const [stages, setStages] = useState<StageMap>(DEFAULT_STAGES);
+  const [sseUrl, setSseUrl] = useState<string | null>(null);
+
+  // Load full recommendation when selected
+  useEffect(() => {
+    if (!selectedId) {
+      setSelectedRec(null);
+      return;
+    }
+    void getRecommendation(selectedId).then((rec) => {
+      setSelectedRec(rec);
+      // If already running or pending, open SSE
+      if (rec.status === 'running' || rec.status === 'pending') {
+        setStages(DEFAULT_STAGES);
+        setSseUrl(`/api/recommendations/${selectedId}/stream`);
+      }
+    });
+  }, [selectedId]);
+
+  const handleSSEEvent = useCallback(
+    (event: SSEEvent) => {
+      if (!selectedId) return;
+
+      if (event.stage !== 'complete') {
+        const stageKey = event.stage as keyof StageMap;
+        if (STAGE_ORDER.includes(stageKey)) {
+          setStages((prev) => ({
+            ...prev,
+            [stageKey]: event.status === 'start' ? 'running' : event.status === 'done' ? 'done' : 'error',
+          }));
+        }
+      }
+
+      if (event.stage === 'complete' && event.status === 'done') {
+        setSseUrl(null);
+        updateStatus(selectedId, 'done');
+        // Reload full recommendation to get results
+        void getRecommendation(selectedId).then(setSelectedRec);
+        void refreshList();
+      }
+
+      if (event.status === 'error') {
+        setSseUrl(null);
+        updateStatus(selectedId, 'error');
+        const stageKey = event.stage as PipelineStage;
+        if (stageKey !== 'complete') {
+          setStages((prev) => ({ ...prev, [stageKey as keyof StageMap]: 'error' }));
+        }
+      }
+    },
+    [selectedId, updateStatus, refreshList],
+  );
+
+  useSSE(sseUrl, handleSSEEvent);
+
+  const handleSelect = (id: string) => {
+    setSseUrl(null);
+    setStages(DEFAULT_STAGES);
+    setSelectedId(id);
+  };
+
+  const handleCreateNew = async (body: {
+    main_prompt: string;
+    liked_shows: string;
+    disliked_shows: string;
+    themes: string;
+  }) => {
+    const id = await createNew(body);
+    setStages(DEFAULT_STAGES);
+    setSseUrl(`/api/recommendations/${id}/stream`);
+  };
+
+  const handleRerank = async () => {
+    if (!selectedId) return;
+    await rerank(selectedId);
+    setStages(DEFAULT_STAGES);
+    setSseUrl(`/api/recommendations/${selectedId}/stream`);
+    setSelectedRec((prev) => (prev ? { ...prev, status: 'pending' } : null));
+  };
+
+  const isRunning =
+    selectedRec?.status === 'running' || selectedRec?.status === 'pending' || !!sseUrl;
+
+  const feedbackMap = new Map(feedback.map((f) => [f.tv_show_name, f]));
+
+  return (
+    <div class="layout">
+      <Sidebar
+        list={list}
+        selectedId={selectedId}
+        onSelect={handleSelect}
+        onNewClick={() => setShowModal(true)}
+      />
+
+      <main class="main-content">
+        {!selectedId && (
+          <div class="empty-state">
+            <h2>TV Show Recommender</h2>
+            <p>Click <strong>+ New Recommendation</strong> to get started.</p>
+          </div>
+        )}
+
+        {selectedId && isRunning && (
+          <div class="content-area">
+            <PipelineProgress stages={stages} />
+          </div>
+        )}
+
+        {selectedId && !isRunning && selectedRec?.status === 'done' && selectedRec.recommendations && (
+          <div class="content-area">
+            <h2 class="rec-title">{selectedRec.title}</h2>
+
+            <div class="cards-grid">
+              {selectedRec.recommendations.map((show) => (
+                <RecommendationCard
+                  key={show.title}
+                  show={show}
+                  existingFeedback={feedbackMap.get(show.title)}
+                  onFeedback={async (name, stars, comment) => {
+                    await submitFeedback({ tv_show_name: name, stars, feedback: comment });
+                  }}
+                />
+              ))}
+            </div>
+
+            <div class="rerank-section">
+              <button
+                class="btn-rerank"
+                onClick={handleRerank}
+                disabled={feedback.length === 0}
+                title={feedback.length === 0 ? 'Rate at least one show to enable re-ranking' : 'Re-rank based on your feedback'}
+              >
+                Re-rank with Feedback {feedback.length > 0 ? `(${feedback.length} rated)` : ''}
+              </button>
+            </div>
+          </div>
+        )}
+
+        {selectedId && !isRunning && selectedRec?.status === 'error' && (
+          <div class="content-area error-state">
+            <h2>Something went wrong</h2>
+            <p>The pipeline encountered an error. You can try again by clicking Re-rank.</p>
+            <button class="btn-primary" onClick={handleRerank}>
+              Try Again
+            </button>
+          </div>
+        )}
+      </main>
+
+      {showModal && (
+        <NewRecommendationModal
+          onClose={() => setShowModal(false)}
+          onSubmit={handleCreateNew}
+        />
+      )}
+    </div>
+  );
+}
--- a/packages/frontend/src/types/index.ts
+++ b/packages/frontend/src/types/index.ts
@@ -0,0 +1,49 @@
+export type CuratorCategory = 'Definitely Like' | 'Might Like' | 'Questionable' | 'Will Not Like';
+
+export interface CuratorOutput {
+  title: string;
+  explanation: string;
+  category: CuratorCategory;
+}
+
+export type RecommendationStatus = 'pending' | 'running' | 'done' | 'error';
+
+export interface Recommendation {
+  id: string;
+  title: string;
+  main_prompt: string;
+  liked_shows: string;
+  disliked_shows: string;
+  themes: string;
+  recommendations: CuratorOutput[] | null;
+  status: RecommendationStatus;
+  created_at: string;
+}
+
+export interface RecommendationSummary {
+  id: string;
+  title: string;
+  status: RecommendationStatus;
+  created_at: string;
+}
+
+export interface FeedbackEntry {
+  id: string;
+  tv_show_name: string;
+  stars: number;
+  feedback: string;
+  created_at: string;
+}
+
+export type PipelineStage = 'interpreter' | 'retrieval' | 'ranking' | 'curator' | 'complete';
+export type SSEStatus = 'start' | 'done' | 'error';
+
+export interface SSEEvent {
+  stage: PipelineStage;
+  status: SSEStatus;
+  data?: unknown;
+}
+
+export type StageStatus = 'pending' | 'running' | 'done' | 'error';
+
+export type StageMap = Record<Exclude<PipelineStage, 'complete'>, StageStatus>;
--- a/packages/frontend/tsconfig.app.json
+++ b/packages/frontend/tsconfig.app.json
@@ -0,0 +1,33 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
+    "target": "ES2023",
+    "useDefineForClassFields": true,
+    "module": "ESNext",
+    "lib": ["ES2023", "DOM", "DOM.Iterable"],
+    "types": ["vite/client"],
+    "skipLibCheck": true,
+    "paths": {
+      "react": ["./node_modules/preact/compat/"],
+      "react-dom": ["./node_modules/preact/compat/"]
+    },
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+    "jsx": "react-jsx",
+    "jsxImportSource": "preact",
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["src"]
+}
--- a/packages/frontend/tsconfig.json
+++ b/packages/frontend/tsconfig.json
@@ -0,0 +1,7 @@
+{
+  "files": [],
+  "references": [
+    { "path": "./tsconfig.app.json" },
+    { "path": "./tsconfig.node.json" }
+  ]
+}
--- a/packages/frontend/tsconfig.node.json
+++ b/packages/frontend/tsconfig.node.json
@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
+    "target": "ES2023",
+    "lib": ["ES2023"],
+    "module": "ESNext",
+    "types": ["node"],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["vite.config.ts"]
+}
--- a/packages/frontend/vite.config.ts
+++ b/packages/frontend/vite.config.ts
@@ -0,0 +1,16 @@
+import { defineConfig } from 'vite'
+import preact from '@preact/preset-vite'
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [preact()],
+  server: {
+    proxy: {
+      '/api': {
+        target: 'http://localhost:3000',
+        rewrite: (path) => path.replace(/^\/api/, ''),
+        changeOrigin: true,
+      },
+    },
+  },
+})
				`@@ -0,0 +1 @@`
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