fix(agent): keep strict permissions server-side, not in repo

The previous commit put .claude/settings.json IN THE REPO, which would
have applied its strict deny rules to ANY Claude Code invocation from
this cwd — including the human user's interactive dev sessions on their
own machine. That's wrong; the production agent's lockdown should not
constrain the developer.

Remove the committed file and gitignore .claude/ entirely. The repo is
permission-neutral now.

Strict permissions for the production agent come from two server-only
sources:
  1. CLI flags in agent/claude_wrapper.py (--allowed-tools +
     --disallowed-tools, passed by the systemd-spawned subprocess only)
  2. /var/lib/overlord-agent/.claude/settings.json (the agent's own HOME
     — separate from any user's .claude/)

Also bumps claude_wrapper.py with the explicit --disallowed-tools list
of meta-tools (ToolSearch, Monitor, TodoWrite, TaskOutput, Skill, cron
tools, etc.) that the --allowed-tools whitelist does not block on its
own. Verified empirically: with only --allowed-tools, ToolSearch was
still callable; --disallowed-tools is required.

.claude/settings.json

@@ -1,19 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "WebFetch(domain:acpedia.org)"
-    ],
-    "deny": [
-      "Bash",
-      "Write",
-      "Edit",
-      "Read",
-      "Glob",
-      "Grep",
-      "NotebookEdit",
-      "WebSearch"
-    ],
-    "ask": []
-  },
-  "enableAllProjectMcpServers": true
-}

.gitignore

@@ -3,7 +3,9 @@ __pycache__
 static/v2/
 frontend/node_modules/
 
-# Claude Code per-machine permissions (do NOT deploy to server — production
-# agent must run with the strict permissions in committed .claude/settings.json)
-.claude/settings.local.json
-.claude/settings.local.json.*
+# Claude Code config — never commit. The production agent's strict
+# permissions live server-side at /var/lib/overlord-agent/.claude/
+# (and via CLI flags in agent/claude_wrapper.py). The repo stays
+# permission-neutral so devs can `claude` interactively here without
+# inheriting production-agent restrictions.
+.claude/

agent/claude_wrapper.py

@@ -91,6 +91,50 @@ async def ask_claude(message: str, session_id: str) -> ClaudeResult:
         ]
     )
 
+    # CRITICAL: Claude Code's built-in meta-tools (ToolSearch, Monitor, etc.)
+    # bypass the --allowed-tools whitelist. They come from Anthropic's tool
+    # registry rather than from local MCP servers. We must explicitly DISALLOW
+    # them — confirmed by testing that ToolSearch was reachable even with
+    # `--permission-mode dontAsk` and a tight --allowed-tools list.
+    disallowed_tools = ",".join(
+        [
+            # File / shell / search built-ins (defense in depth — already not
+            # in allow list, but if someone toggles permission-mode this
+            # belt-and-suspenders the deny side).
+            "Bash",
+            "Write",
+            "Edit",
+            "Read",
+            "Glob",
+            "Grep",
+            "NotebookEdit",
+            # Network built-ins
+            "WebSearch",
+            # Tool / session meta-tools — these can list, load, or chain
+            # into other tools and must NOT be reachable.
+            "ToolSearch",
+            "Monitor",
+            "TaskOutput",
+            "TaskStop",
+            "TodoWrite",
+            "Skill",
+            "EnterPlanMode",
+            "ExitPlanMode",
+            "EnterWorktree",
+            "ExitWorktree",
+            "AskUserQuestion",
+            "ListMcpResourcesTool",
+            "ReadMcpResourceTool",
+            "PushNotification",
+            # Scheduling / cron — the agent must never schedule itself.
+            "CronCreate",
+            "CronList",
+            "CronDelete",
+            "ScheduleWakeup",
+            "RemoteTrigger",
+        ]
+    )
+
     # Pick --session-id (creates) vs --resume (continues) based on whether
     # the session JSONL already exists on disk.
     is_new = not _session_exists(session_id)
@@ -105,6 +149,10 @@ async def ask_claude(message: str, session_id: str) -> ClaudeResult:
         "json",
         "--allowed-tools",
         allowed_tools,
+        # Built-in meta-tools that --allowed-tools does NOT block — must
+        # be explicitly listed here.
+        "--disallowed-tools",
+        disallowed_tools,
         # CRITICAL: dontAsk auto-DENIES anything outside --allowed-tools.
         # Do NOT use bypassPermissions here — that mode ignores the whitelist
         # entirely and lets the model call Bash/Write/Edit/etc. (verified