Fix recipe listing, effects count, and add nav counts to all pages

- Fix list_by_type to return node_id (IPFS CID) instead of local hash
- Fix effects count on home page (count from _effects/ directory)
- Add nav_counts to all page templates (recipes, effects, runs, media, storage)
- Add editable metadata section to cache/media detail page
- Show more metadata on recipe detail page (ID, IPFS CID, step count)
- Update tests for new list_by_type behavior

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/dependencies.py

@@ -170,9 +170,14 @@ async def get_nav_counts(actor_id: Optional[str] = None) -> dict:
         pass
 
     try:
+        # Effects are stored in _effects/ directory, not in cache
+        from pathlib import Path
         cache_mgr = get_cache_manager()
-        effects = cache_mgr.list_by_type('effect')
-        counts["effects"] = len(effects)
+        effects_dir = Path(cache_mgr.cache_dir) / "_effects"
+        if effects_dir.exists():
+            counts["effects"] = len([d for d in effects_dir.iterdir() if d.is_dir()])
+        else:
+            counts["effects"] = 0
     except Exception:
         pass