docs: update architecture in AGENTS.md

Amolith created 

Add existing MCP tools and resources to the architecture diagram that
were missing from the list.

Assisted-by: Claude Opus 4.5 via Crush

Change summary

AGENTS.md | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

Detailed changes

AGENTS.md 🔗 

@@ -57,8 +57,8 @@ internal/
   validate/          → Input validation (delegates to go-lunatask Parse* functions)
   mcp/
     shared/          → Provider types (AreaProvider, HabitProvider) and error helpers
-    tools/           → MCP tool handlers (task/, habit/, timestamp/)
-    resources/       → MCP resource handlers (areas/, habits/, notebooks/)
+    tools/           → MCP tool handlers (task/, note/, person/, habit/, journal/, timestamp/)
+    resources/       → MCP resource handlers (areas/, habits/, notebooks/, task/, note/, person/)
 ```
 
 **Command flow**: `fang.Execute()` wraps Cobra with version/commit info and