feat: friendly tool names per MCP title field or manifest

- Aggiunto campo 'title' a tools/list in tutti gli script MCP locali
  (Gmail, Gcal, Drive, Email, SSH, Weather, Wikipedia, WhatsApp)
- Aggiunto tools[]/display_name nel manifest per connector remoti/package
  esterni (Firecrawl, HTTP Fetch, Exa, Tavily, SerpAPI Flights)
- Documentata convenzione e resolution order in SKALD.md
- Aggiornata manifest_guide.md per tools[] in connectors.json
- Bumped version e sha256 per tutti i 13 connector

connectors/gcal/gcal_mcp_server.py

@@ -684,6 +684,7 @@ TOOLS = [
     # ── Self-check ─────────────────────────────────────────────────────────────
     {
         "name": "status",
+        "title": "Status",
         "description": (
             "Self-check that the Google Calendar integration is operational: verifies the OAuth "
             "credentials load, the access token refreshes when needed, and the Calendar API responds, "
@@ -695,11 +696,13 @@ TOOLS = [
     # ── Read-only ──────────────────────────────────────────────────────────────
     {
         "name": "list_calendars",
+        "title": "List Calendars",
         "description": "Lists all calendars accessible to the authenticated user. Use it to discover calendar_id values to pass to the other gcal tools.",
         "inputSchema": {"type": "object", "properties": {}},
     },
     {
         "name": "list_events",
+        "title": "List Events",
         "description": (
             "Lists calendar events from a given calendar, ordered chronologically. "
             "If time_min is omitted, defaults to NOW (current UTC time) — so you never get past events by accident. "
@@ -738,6 +741,7 @@ TOOLS = [
     },
     {
         "name": "get_event",
+        "title": "Get Event",
         "description": "Returns a single calendar event by ID, including attendees with their RSVP status.",
         "inputSchema": {
             "type": "object",
@@ -757,6 +761,7 @@ TOOLS = [
     # ── Write ──────────────────────────────────────────────────────────────────
     {
         "name": "create_event",
+        "title": "Create Event",
         "description": (
             "Creates a new event in the specified calendar and returns its ID + HTML link. "
             "Use ISO 8601 for start/end (e.g. '2025-06-15T10:00:00' for timed events, "
@@ -814,6 +819,7 @@ TOOLS = [
     },
     {
         "name": "update_event",
+        "title": "Update Event",
         "description": (
             "Updates an existing event. Only fields provided are changed; omitted fields keep their "
             "current values. Returns the updated event ID."
@@ -854,6 +860,7 @@ TOOLS = [
     },
     {
         "name": "delete_event",
+        "title": "Delete Event",
         "description": "Permanently deletes a calendar event. Irreversible.",
         "inputSchema": {
             "type": "object",
@@ -872,6 +879,7 @@ TOOLS = [
     },
     {
         "name": "respond_to_event",
+        "title": "Respond to Event",
         "description": "Set your RSVP / attendance response (accepted, declined, tentative, needsAction) for a calendar event.",
         "inputSchema": {
             "type": "object",