chore: untrack .claude/settings.local.json from global ignore

Override global gitignore rule to allow project-specific Claude settings.

.claude/settings.local.json

@@ -0,0 +1,14 @@
+{
+  "permissions": {
+    "allow": [
+      "WebSearch",
+      "Bash(openspec:*)",
+      "Bash(openspec new:*)",
+      "Bash(openspec status:*)",
+      "Bash(openspec instructions:*)",
+      "Bash(uv run:*)",
+      "Bash(ls:*)",
+      "Bash(wc:*)"
+    ]
+  }
+}

.gitignore

@@ -264,3 +264,4 @@ pnpm-lock.yaml
 # !assets/
 
 temp
+!.claude/settings.local.json