feat: add Goldfish Recap YouTube summary PWA

YouTube subtitles via OpenRouter become persistent, shareable recaps
with timestamp jump links, PIN-protected creation, and Traefik deploy.

Co-authored-by: Cursor <cursoragent@cursor.com>

tools/schema.sql

@@ -0,0 +1,19 @@
+CREATE TABLE IF NOT EXISTS recaps (
+  video_id      TEXT PRIMARY KEY,
+  title         TEXT NOT NULL,
+  channel       TEXT,
+  thumbnail_url TEXT,
+  duration_sec  INTEGER,
+  language      TEXT,
+  tldr          TEXT NOT NULL,
+  vibe_check    TEXT,
+  watch_verdict TEXT NOT NULL CHECK (watch_verdict IN ('watch', 'skim', 'skip')),
+  goldfish_note TEXT,
+  sections_json TEXT NOT NULL,
+  transcript_hash TEXT,
+  model         TEXT,
+  created_at    TEXT NOT NULL,
+  updated_at    TEXT NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_recaps_created_at ON recaps (created_at DESC);