docs(mcp): add provision_workspace to CLAUDE.md tool registry

Updates the MCP Tool Registry to reflect the 88th tool added by
PR #19 (feat/provision-workspace-tool-failclosed). Bump tool count
from 87→88, Workspace Tools subcount from 8→9, and add the new
provision_workspace entry to the Workspace Tools table.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

CLAUDE.md

@@ -145,9 +145,9 @@ src/
 
 ## MCP Tool Registry
 
-Full list of tools exposed by this server (87 total). Each is implemented in `src/tools/<name>.ts`.
+Full list of tools exposed by this server (88 total). Each is implemented in `src/tools/<name>.ts`.
 
-### Workspace Tools (8)
+### Workspace Tools (9)
 | Tool | Description |
 |------|-------------|
 | `list_workspaces` | List all workspaces with their status, skills, and hierarchy |
@@ -157,6 +157,7 @@ Full list of tools exposed by this server (87 total). Each is implemented in `sr
 | `delete_workspace` | Delete a workspace (cascades to children) |
 | `restart_workspace` | Restart an offline or failed workspace |
 | `pause_workspace` | Pause a workspace (stops container, preserves config) |
+| `provision_workspace` | Provision a new workspace with runtime validation and read-back verification |
 | `resume_workspace` | Resume a paused workspace |
 
 ### Agent Tools (6)