feat(channel): page details chaine multi-providers avec onglets et infinite scroll

- Strategy Pattern front: ChannelProviderInterface + 6 providers (yt/dm/tw/pt/od/ru) + factory (ids longs/courts)
- ChannelContentService: cache par onglet/tri/recherche (TTL 5min), pagination nextPage
- ChannelPage: header (banniere/avatar/subs/description ...plus), tabs dynamiques par capabilities, grilles videos/shorts 9:16/playlists/live, recherche debounced, tri recent/populaire, infinite scroll IntersectionObserver, skeletons/empty/error
- Backend: GET /api/channels/:provider/:id/content (videos/shorts/playlists/live) natif par provider

docker/Dockerfile.origi

@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1
 
 # -------------------- Build stage --------------------
-FROM node:20-bullseye AS builder
+FROM node:20-bookworm AS builder
 WORKDIR /app
 
 # Install dependencies
@@ -18,7 +18,7 @@ RUN npx ng build --configuration=production
 RUN npm prune --omit=dev
 
 # -------------------- Runtime stage --------------------
-FROM node:20-bullseye-slim AS runner
+FROM node:20-bookworm-slim AS runner
 ENV NODE_ENV=production \
     YOUTUBE_DL_SKIP_PYTHON_CHECK=1
 WORKDIR /app
@@ -26,19 +26,26 @@ WORKDIR /app
 # Create required runtime directories
 RUN mkdir -p /app/db /app/tmp/downloads
 
-# youtube-dl-exec (yt-dlp) requires Python at runtime
+# youtube-dl-exec (yt-dlp) requires Python at runtime.
+# curl_cffi is required by yt-dlp impersonation AND by the Rumble provider's
+# Cloudflare bypass helper (server/providers/rumble_fetch.py).
 RUN apt-get update \
-    && apt-get install -y --no-install-recommends python3 python-is-python3 ca-certificates curl \
-    && rm -rf /var/lib/apt/lists/*
+    && apt-get install -y --no-install-recommends python3 python-is-python3 python3-pip ca-certificates curl \
+    && rm -rf /var/lib/apt/lists/* \
+    && python3 -m pip install --no-cache-dir --break-system-packages curl_cffi 2>/dev/null \
+    || python3 -m pip install --no-cache-dir curl_cffi
 
 # Copy runtime server and built frontend
 COPY --from=builder /app/server ./server
 COPY --from=builder /app/dist ./dist
-# Copy only the DB schema; the actual DB file will be created on first run
+# Copy the DB schema AND migrations; the actual DB file will be created on first run
 COPY --from=builder /app/db/schema.sql ./db/schema.sql
-## Also copy schema to an immutable location that won't be shadowed by a bind mount
-RUN mkdir -p /app/db-schema
+COPY --from=builder /app/db/migrations ./db/migrations
+## Also copy schema+migrations to an immutable location that won't be shadowed
+## by a bind/named volume mounted on /app/db
+RUN mkdir -p /app/db-schema /app/db-migrations
 COPY --from=builder /app/db/schema.sql /app/db-schema/schema.sql
+COPY --from=builder /app/db/migrations /app/db-migrations/
 
 # Copy production dependencies from builder
 COPY --from=builder /app/node_modules ./node_modules