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

spa/src/lib/api/client.ts

@@ -157,6 +157,17 @@ export async function putForm<T = void>(
   })
 }
 
+export async function patch<T = void>(
+  path: string,
+  body?: unknown,
+): Promise<T> {
+  return request<T>(buildUrl(path), {
+    method: "PATCH",
+    headers: { "Content-Type": "application/json" },
+    body: body ? JSON.stringify(body) : undefined,
+  })
+}
+
 export async function del<T = void>(path: string): Promise<T> {
   return request<T>(buildUrl(path), { method: "DELETE" })
 }