ci: dev version includes UTC time (dev-YYYYMMDD-HHmm)

Phase 1: browse power-up
- faceted filters: tags + features (array containment) and min rating
  on listTools; new ?tags=?features=?minRating= URL params with chips
- global Cmd+K command palette (cmdk) with tool search + navigation
- mini usefulness/usability bars on grid cards, wide cards and table rows

lib/api-spec/openapi.yaml

@@ -73,6 +73,26 @@ paths:
           schema:
             type: string
             enum: [newest, top_rated, most_reviewed, name_asc, name_desc, recently_updated]
+        - name: tags
+          in: query
+          required: false
+          description: Comma-separated tags; tool must include all of them
+          schema:
+            type: string
+        - name: features
+          in: query
+          required: false
+          description: Comma-separated features; tool must include all of them
+          schema:
+            type: string
+        - name: minRating
+          in: query
+          required: false
+          description: Minimum average combined rating (0-5)
+          schema:
+            type: number
+            minimum: 0
+            maximum: 5
       responses:
         "200":
           description: List of tools