chore: add .codegraph to .gitignore, untrack daemon files

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.codegraph/.gitignore

@@ -1,16 +0,0 @@
-# CodeGraph data files
-# These are local to each machine and should not be committed
-
-# Database
-*.db
-*.db-wal
-*.db-shm
-
-# Cache
-cache/
-
-# Logs
-*.log
-
-# Hook markers
-.dirty

.codegraph/daemon.pid

@@ -1,6 +0,0 @@
-{
-  "pid": 1742792,
-  "version": "0.9.9",
-  "socketPath": "/home/gjermund/projects/tessera/.codegraph/daemon.sock",
-  "startedAt": 1780994115213
-}

.gitignore

@@ -33,3 +33,6 @@ bun.lock
 
 # Finder (MacOS) folder config
 .DS_Store
+
+# Codegraph index (MCP tool)
+.codegraph