fix(tools): /tools shows the full pre-assembly catalog; adapt tests to tiered disclosure

CI slices 2 and 7 caught three tests broken by always-defer:

- /tools (CLI show_tools + TUI gateway tools.show) now passes
  skip_tool_search_assembly=True — it's a discovery/inspection surface,
  so users verifying an MCP installed must see deferred tools, not a
  collapsed bridge row. This also fixes
  test_slash_worker_mcp_discovery (profile MCP tool visible in /tools).
- test_plugins.py::test_plugin_tools_in_definitions: 'visible' becomes
  'reachable' — direct schema OR listed in the bridge description;
  scope-exclusion assertions unchanged (not direct AND not listed).
- test_discord_tool.py dynamic-schema-rebuild test reads the
  pre-assembly list (the rebuilt schema is what tool_describe serves).

Banner/status tool counts intentionally keep the post-assembly view —
they reflect what the model actually sees.

cli.py

@@ -6874,7 +6874,11 @@ class HermesCLI(CLIAgentSetupMixin, CLICommandsMixin, CLIBillingMixin):
     
     def show_tools(self):
         """Display available tools with kawaii ASCII art."""
-        tools = get_tool_definitions(enabled_toolsets=self.enabled_toolsets, quiet_mode=True)
+        # Pre-assembly list: /tools is a discovery/inspection surface, so it
+        # must show the full catalog including tools deferred behind the
+        # tool_search bridge (users check this to verify an MCP installed).
+        tools = get_tool_definitions(enabled_toolsets=self.enabled_toolsets, quiet_mode=True,
+                                     skip_tool_search_assembly=True)
         
         if not tools:
             print("(;_;) No tools available")