feat(places): M5.a — places adopt the unified visibility system

Sixth consumer of @mana/shared-privacy. Places now carry a VisibilityLevel
flipped via <VisibilityPicker> in the Places DetailView; the new
places.places embed powers "my favourite cafes" / "rehearsal rooms" /
"gyms I train at" sections on the owner's website.

Changes:
- places/types: visibility + unlistedToken + visibilityChangedAt +
  visibilityChangedBy on LocalPlace; Place (UI type) requires visibility
- places/queries: toPlace forwards visibility with 'space' fallback for
  legacy rows
- places/stores/places: createPlace stamps
  defaultVisibilityFor(activeSpace.type); new setVisibility(id, level)
  mints/clears the unlisted token on the transition boundary and emits
  cross-module VisibilityChanged
- places/views/DetailView: <VisibilityPicker> as the first field-row,
  above Kategorie

website embed:
- website-blocks/moduleEmbed/schema: 'places.places' added to
  EmbedSourceSchema; filter docstring describes the places-specific
  reuse of existing kind/isFavorite/tagIds filter fields
- website/embeds: resolvePlaces gates hard on canEmbedOnWebsite,
  applies optional kind (→ PlaceCategory) / isFavorite / tagIds
  filters, sorts favourites-first then alphabetical.

Privacy: Whitelist (title + address only). Latitude/longitude are
explicitly NOT inlined — 10m precision of a home or workplace can
identify someone, and silently publishing coords on a visibility flip
would be the classic leak the design was built to prevent (plan §2).

Verified:
- pnpm check (web): 7450 files, 0 errors

Next: M5.b — Events (socialEvents), Recipes, Wardrobe-Outfits, Habits,
Quiz, Invoices-Clients. Same pattern.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/website-blocks/src/moduleEmbed/schema.ts

@@ -32,6 +32,7 @@ export const EmbedSourceSchema = z.enum([
 	'calendar.events',
 	'todo.tasks',
 	'goals.goals',
+	'places.places',
 ]);
 export type EmbedSource = z.infer<typeof EmbedSourceSchema>;
 
@@ -56,6 +57,9 @@ export const ModuleEmbedSchema = z.object({
 	 *   goals.goals:     { status? } — 'active' | 'completed' filter;
 	 *                    useful for "currently working on" vs "things
 	 *                    I've hit" progress sections
+	 *   places.places:   { kind? (mapped to PlaceCategory),
+	 *                      isFavorite?, tagIds? } — "my favourite cafes",
+	 *                      "rehearsal rooms I use", etc.
 	 */
 	filter: z
 		.object({