feat: add hooks.json for PreToolUse, PostToolUse, PreCompact, SessionStart

Hooks:
- PreToolUse/Bash: Block destructive commands, enforce core CLI
- PostToolUse/Edit: Auto-format Go/PHP files, warn about debug statements
- PostToolUse/Bash: Warn about uncommitted work after git commit
- PreCompact: Save state to prevent amnesia
- SessionStart: Restore recent session context

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

hooks/hooks.json

@@ -0,0 +1,83 @@
+{
+  "$schema": "https://claude.ai/schemas/hooks.json",
+  "hooks": {
+    "PreToolUse": [
+      {
+        "matcher": "Bash",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "bash ./hooks/prefer-core.sh"
+          }
+        ],
+        "description": "Block destructive commands (rm -rf, sed -i, xargs rm) and enforce core CLI"
+      }
+    ],
+    "PostToolUse": [
+      {
+        "matcher": "tool == \"Edit\" && tool_input.file_path matches \"\\.go$\"",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "bash ./scripts/go-format.sh"
+          }
+        ],
+        "description": "Auto-format Go files after edits"
+      },
+      {
+        "matcher": "tool == \"Edit\" && tool_input.file_path matches \"\\.php$\"",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "bash ./scripts/php-format.sh"
+          }
+        ],
+        "description": "Auto-format PHP files after edits"
+      },
+      {
+        "matcher": "tool == \"Edit\"",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "bash ./scripts/check-debug.sh"
+          }
+        ],
+        "description": "Warn about debug statements (dd, dump, fmt.Println)"
+      },
+      {
+        "matcher": "tool == \"Bash\" && tool_input.command matches \"^git commit\"",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "bash ./scripts/post-commit-check.sh"
+          }
+        ],
+        "description": "Warn about uncommitted work after git commit"
+      }
+    ],
+    "PreCompact": [
+      {
+        "matcher": "*",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "bash ./scripts/pre-compact.sh"
+          }
+        ],
+        "description": "Save state before auto-compact to prevent amnesia"
+      }
+    ],
+    "SessionStart": [
+      {
+        "matcher": "*",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "bash ./scripts/session-start.sh"
+          }
+        ],
+        "description": "Restore recent session context on startup"
+      }
+    ]
+  }
+}