gmaps: fix missing dependency install + wire verify (v6 / 1.1.0)

The connector shipped no requirements.txt, so ensure_installed_host()
installed nothing and every tool call failed with "No module named
'googlemaps'" while the server still answered tools/list — skald logged
"connected — 6 tool(s)" on a connector that could not work.

- add requirements.txt (googlemaps>=4.10.0); deps were declared in the
  manifest's `dependencies` field, which skald only uses for the card
- wire the shipped verify.py through a `verify` manifest block, so a
  broken install fails visibly at enable time instead of silently
- verify.py puts .pydeps on sys.path: skald sets PYTHONPATH only for the
  server process, not for the `sh -c "python3 verify.py"` verify step
- drop the inert mcp_config.env {SECRET:…} placeholder — those tokens are
  substituted in the URL only, never in env values
- realign manifest/fragment versions (were 2/1.0.1 vs 5/1.0.4); skald
  prefers the manifest, so "update available" could never appear
- requires ENV -> API_KEY; drop deprecated secrets/ path from error text
- regenerate the index

connectors/gmaps/gmaps_mcp_server.py

@@ -9,8 +9,9 @@ Capabilities (callable as `mcp__gmaps__<tool>`):
   distance_matrix  — travel time & distance between multiple origins/destinations
 
 Auth:
-  API key is read from env var GOOGLE_MAPS_API_KEY, or from the file at
-  GOOGLE_MAPS_API_KEY_FILE (default: ./secrets/gmaps_api_key.txt).
+  API key is read from env var GOOGLE_MAPS_API_KEY, injected by Skald from the
+  connector's `env[]` form field. A file fallback (GOOGLE_MAPS_API_KEY_FILE)
+  exists for standalone runs only.
 
 Required Google Cloud APIs to enable:
   - Directions API
@@ -81,8 +82,8 @@ def _get_client():
     if not api_key:
         _init_error = (
             "Google Maps API key not found. "
-            "Set GOOGLE_MAPS_API_KEY env var or create secrets/gmaps_api_key.txt "
-            "with just the key on the first line."
+            "Open the Google Maps connector in Skald and paste the API key into "
+            "the 'Google Maps API key' field, then re-enable it."
         )
         log(_init_error)
         return None
@@ -119,7 +120,7 @@ def _format_gmaps_error(e: Exception, api_label: str) -> str:
         if status == "REQUEST_DENIED":
             return (
                 f"Error: {api_label} API request denied (REQUEST_DENIED). "
-                "Verify that the API key in secrets/gmaps_api_key.txt is valid and that "
+                "Verify that the API key configured for this connector is valid and that "
                 f"the {api_label} API is enabled in the Google Cloud Console."
             )
         if status == "INVALID_REQUEST":
@@ -163,8 +164,9 @@ def _maps_status(args: dict) -> str:
     if not api_key:
         return (
             "Error: Google Maps API key not found. "
-            "Set GOOGLE_MAPS_API_KEY env var or create secrets/gmaps_api_key.txt "
-            "with the key on the first line. No Google Maps tool will work until this is fixed."
+            "Ask the administrator to open the Google Maps connector in Skald and paste "
+            "the API key into the 'Google Maps API key' field. "
+            "No Google Maps tool will work until this is fixed."
         )
 
     # Step 2: dependency present + client built?