Phase 10: Telegram bot commands + Phase 11: Snackbar notifications

Phase 10 — Telegram Bot Commands:
- Add commands_config JSON field to TelegramBot model (enabled cmds,
  default count, response mode, rate limits, locale)
- Create command handler with 14 commands: /status, /albums, /events,
  /summary, /latest, /memory, /random, /search, /find, /person,
  /place, /favorites, /people, /help
- Add search_smart, search_metadata, search_by_person, get_random,
  download_asset, get_asset_thumbnail to ImmichClient
- Auto-register commands with Telegram setMyCommands API (EN+RU)
- Rate limiting per chat per command category
- Media mode: download thumbnails and send as photos to Telegram
- Webhook handler routes /commands before falling through to AI chat
- Frontend: expandable Commands section per bot with checkboxes,
  count/mode/locale settings, rate limit inputs, sync button

Phase 11 — Snackbar Notifications:
- Create snackbar store (snackbar.svelte.ts) with $state rune
- Create Snackbar component with fly/fade transitions, typed colors
- Mount globally in +layout.svelte
- Replace all alert() calls with typed snackbar notifications
- Add success snacks to all CRUD operations across all pages
- 4 types: success (3s), error (5s), info (3s), warning (4s)
- Max 3 visible, auto-dismiss, manual dismiss via X button

Both: Add ~30 i18n keys (EN+RU) for commands UI and snack messages.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/core/src/immich_watcher_core/immich_client.py

@@ -358,5 +358,189 @@ class ImmichClient:
             return False
 
 
+    async def search_smart(
+        self,
+        query: str,
+        album_ids: list[str] | None = None,
+        limit: int = 10,
+    ) -> list[dict[str, Any]]:
+        """Semantic search via Immich CLIP (smart search).
+
+        Args:
+            query: Natural language search query
+            album_ids: Optional list of album IDs to scope results to
+            limit: Max results to return
+
+        Returns:
+            List of asset dicts from search results
+        """
+        payload: dict[str, Any] = {"query": query, "page": 1, "size": limit}
+        try:
+            async with self._session.post(
+                f"{self._url}/api/search/smart",
+                headers=self._json_headers,
+                json=payload,
+            ) as response:
+                if response.status == 200:
+                    data = await response.json()
+                    items = data.get("assets", {}).get("items", [])
+                    if album_ids:
+                        # Post-filter: only keep assets from tracked albums
+                        tracked = set(album_ids)
+                        items = [
+                            a for a in items
+                            if any(
+                                alb.get("id") in tracked
+                                for alb in a.get("albums", [])
+                            )
+                        ]
+                    return items[:limit]
+                _LOGGER.warning("Smart search failed: HTTP %s", response.status)
+        except aiohttp.ClientError as err:
+            _LOGGER.warning("Smart search error: %s", err)
+        return []
+
+    async def search_metadata(
+        self,
+        query: str,
+        album_ids: list[str] | None = None,
+        limit: int = 10,
+    ) -> list[dict[str, Any]]:
+        """Search assets by metadata (filename, description).
+
+        Args:
+            query: Text to search for
+            album_ids: Optional list of album IDs to scope results to
+            limit: Max results to return
+
+        Returns:
+            List of asset dicts from search results
+        """
+        payload: dict[str, Any] = {
+            "originalFileName": query,
+            "page": 1,
+            "size": limit,
+        }
+        try:
+            async with self._session.post(
+                f"{self._url}/api/search/metadata",
+                headers=self._json_headers,
+                json=payload,
+            ) as response:
+                if response.status == 200:
+                    data = await response.json()
+                    items = data.get("assets", {}).get("items", [])
+                    if album_ids:
+                        tracked = set(album_ids)
+                        items = [
+                            a for a in items
+                            if any(
+                                alb.get("id") in tracked
+                                for alb in a.get("albums", [])
+                            )
+                        ]
+                    return items[:limit]
+                _LOGGER.warning("Metadata search failed: HTTP %s", response.status)
+        except aiohttp.ClientError as err:
+            _LOGGER.warning("Metadata search error: %s", err)
+        return []
+
+    async def search_by_person(
+        self,
+        person_id: str,
+        limit: int = 10,
+    ) -> list[dict[str, Any]]:
+        """Find assets containing a specific person.
+
+        Args:
+            person_id: Immich person ID
+            limit: Max results to return
+
+        Returns:
+            List of asset dicts
+        """
+        try:
+            async with self._session.get(
+                f"{self._url}/api/people/{person_id}/assets",
+                headers=self._headers,
+            ) as response:
+                if response.status == 200:
+                    data = await response.json()
+                    return data[:limit]
+                _LOGGER.warning("Person assets failed: HTTP %s", response.status)
+        except aiohttp.ClientError as err:
+            _LOGGER.warning("Person assets error: %s", err)
+        return []
+
+    async def get_random_assets(
+        self,
+        count: int = 5,
+    ) -> list[dict[str, Any]]:
+        """Get random assets from Immich.
+
+        Args:
+            count: Number of random assets to return
+
+        Returns:
+            List of asset dicts
+        """
+        try:
+            async with self._session.get(
+                f"{self._url}/api/assets/random",
+                headers=self._headers,
+                params={"count": count},
+            ) as response:
+                if response.status == 200:
+                    return await response.json()
+                _LOGGER.warning("Random assets failed: HTTP %s", response.status)
+        except aiohttp.ClientError as err:
+            _LOGGER.warning("Random assets error: %s", err)
+        return []
+
+    async def download_asset(self, asset_id: str) -> bytes | None:
+        """Download an asset's original file.
+
+        Args:
+            asset_id: The asset ID to download
+
+        Returns:
+            Raw bytes of the asset, or None on failure
+        """
+        try:
+            async with self._session.get(
+                f"{self._url}/api/assets/{asset_id}/original",
+                headers=self._headers,
+            ) as response:
+                if response.status == 200:
+                    return await response.read()
+                _LOGGER.warning("Asset download failed: HTTP %s", response.status)
+        except aiohttp.ClientError as err:
+            _LOGGER.warning("Asset download error: %s", err)
+        return None
+
+    async def get_asset_thumbnail(self, asset_id: str, size: str = "preview") -> bytes | None:
+        """Download an asset's thumbnail/preview.
+
+        Args:
+            asset_id: The asset ID
+            size: "thumbnail" (small) or "preview" (larger)
+
+        Returns:
+            Raw bytes of the thumbnail, or None on failure
+        """
+        try:
+            async with self._session.get(
+                f"{self._url}/api/assets/{asset_id}/thumbnail",
+                headers=self._headers,
+                params={"size": size},
+            ) as response:
+                if response.status == 200:
+                    return await response.read()
+                _LOGGER.warning("Thumbnail download failed: HTTP %s", response.status)
+        except aiohttp.ClientError as err:
+            _LOGGER.warning("Thumbnail download error: %s", err)
+        return None
+
+
 class ImmichApiError(Exception):
     """Raised when an Immich API call fails."""