chore(mcp): park cad and gitea-mcp entries, blocked on vault visibility

Both services are now proxied from koala and reachable: tailscale serve 8445 ->
127.0.0.1:31877 (cad) and 8446 -> 127.0.0.1:30340 (gitea-mcp). Both answer 401
unauthenticated, so the path is right and auth is enforced.

They stay out of mcpServers because neither token resolves on this host. The
static tokens live in the 1Password AgentSecrets vault; koala's op identity sees
HomeLab only:

  op vault list                    -> HomeLab, and nothing else
  op://HomeLab/CAD_STATIC_TOKEN    -> could not find item
  op://HomeLab/gitea-mcp-shared-token -> could not find item

That is infra#224, not the OAuth-discovery bug #32 and #33 both flagged as the
likely blocker. A live entry that cannot authenticate would fail on every
session start, so the wiring is recorded rather than enabled.

The item names come from the ExternalSecrets, read by reference only — no
secret value was retrieved, printed, or transformed at any point.

Refs #32, #33
Bump-Type: patch

.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "skills",
   "description": "Mathias's engineering skills library, plus the hooks and MCP servers that make it enforceable: TDD, clean code, debugging, specs, discovery, CI, and secret hygiene.",
-  "version": "0.12.1",
+  "version": "0.13.0",
   "author": {
     "name": "Mathias",
     "url": "https://git.d-ma.be/mathias"

.mcp.json

@@ -12,5 +12,22 @@
       "type": "http",
       "url": "https://koala.tail30472e.ts.net:8444/mcp"
     }
+  },
+  "_parked": {
+    "_reason": "cad and gitea-mcp are proxied and reachable (tailscale serve 8445 -> 127.0.0.1:31877, 8446 -> 127.0.0.1:30340; both answer 401 unauthenticated, so auth is enforced and the path is right). They stay parked because their static tokens live in the 1Password AgentSecrets vault, and this host's op identity sees only HomeLab -- 'op vault list' returns HomeLab alone, and resolving op://HomeLab/gitea-mcp-shared-token/password or op://HomeLab/CAD_STATIC_TOKEN/password fails with 'could not find item'. That is infra#224 (AgentSecrets not visible to koala's service account), NOT the OAuth-discovery bug both issues warned about. Enabling is: make the vault visible, add the two op:// references to ~/.op-env, move these entries into mcpServers. See mathias/skills#32 and #33.",
+    "cad": {
+      "type": "http",
+      "url": "https://koala.tail30472e.ts.net:8445/mcp",
+      "headers": {
+        "Authorization": "Bearer ${CAD_MCP_TOKEN}"
+      }
+    },
+    "gitea": {
+      "type": "http",
+      "url": "https://koala.tail30472e.ts.net:8446/mcp",
+      "headers": {
+        "Authorization": "Bearer ${GITEA_MCP_STATIC_TOKEN}"
+      }
+    }
   }
-}
+}