feat: add WatchMedium field, general review editing, configurable deploy

- WatchMedium enum (cinema/streaming/tv/physical_media/download/media_server/other)
- PATCH /api/v1/reviews/:id partial update (rating, comment, watched_at, watch_medium)
- edit_review use case w/ ownership + remote review guard, best-effort AP Update broadcast
- SPA: icon picker, edit sheet (long-press mobile / pencil desktop), watch medium badge
- shared ReviewFormFields, EditableContextMenu, parse_watched_at/format_watched_at
- deploy.sh parameterized (--features, --tag), CORS allows PATCH
- CONTEXT.md glossary, ADR-0001 general review editing

crates/presentation/src/routes.rs

@@ -262,6 +262,7 @@ fn cors_layer() -> CorsLayer {
             Method::GET,
             Method::POST,
             Method::PUT,
+            Method::PATCH,
             Method::DELETE,
             Method::OPTIONS,
         ])
@@ -318,7 +319,7 @@ fn api_routes(rate_limit: u64) -> Router<AppState> {
         .route("/reviews", routing::post(handlers::diary::post_review))
         .route(
             "/reviews/{id}",
-            routing::delete(handlers::diary::delete_review),
+            routing::delete(handlers::diary::delete_review).patch(handlers::diary::patch_review),
         )
         .route(
             "/movies/{id}/sync-poster",