chore(database-mcp): finish VQL→VCL rename

Completes the VQL→VCL rename started in a prior commit (which renamed the
panels file on disk but left cartridge.json and dependent artefacts
pointing at the old name).

- cartridge.json: "SQL or VQL query" → "SQL or VCL query" in both the
  tool description and the query parameter description.
- panels/vql-ut.json → panels/vcl-ut.json: recorded as a rename (content
  already matches the new file that was sitting untracked).
- README.adoc: regenerated from the now-corrected cartridge.json.

Rationale: VeriSim query language was renamed VQL→VCL; MEMORY.md
vcl-rename.md flags the old name as stale.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

cartridges/database-mcp/README.adoc

@@ -18,7 +18,7 @@ Universal database gateway. Connects to PostgreSQL, SQLite, VeriSimDB, QuandleDB
 | Tool | Description
 
 | `database_connect` | Connect to a database backend. Returns a session slot index.
-| `database_query` | Execute a SQL or VQL query.
+| `database_query` | Execute a SQL or VCL query.
 | `database_execute` | Execute a non-returning SQL statement (INSERT/UPDATE/DELETE/DDL).
 | `database_list_tables` | List tables/collections in the connected database.
 | `database_describe` | Describe a table or collection schema.

cartridges/database-mcp/cartridge.json

@@ -44,7 +44,7 @@
     },
     {
       "name": "database_query",
-      "description": "Execute a SQL or VQL query.",
+      "description": "Execute a SQL or VCL query.",
       "inputSchema": {
         "type": "object",
         "properties": {
@@ -54,7 +54,7 @@
           },
           "query": {
             "type": "string",
-            "description": "SQL or VQL query string"
+            "description": "SQL or VCL query string"
           },
           "params": {
             "type": "string",