chore(claude): add format hook

.claude/hooks/format-and-lint.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Read hook input from stdin
+input=$(cat)
+
+# Extract file path from the input JSON
+file_path=$(echo "$input" | jq -r '.tool_input.file_path // empty')
+
+# Only process Go files
+if [[ "$file_path" =~ \.go$ ]]; then
+    echo "Running go fmt on $file_path"
+    go fmt "$file_path"
+fi

.claude/settings.json

@@ -0,0 +1,15 @@
+{
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Edit|Write",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "$CLAUDE_PROJECT_DIR/.claude/hooks/format-and-lint.sh"
+          }
+        ]
+      }
+    ]
+  }
+}

CLAUDE.md

@@ -135,7 +135,7 @@ make migration_lint         # Lint migration files
 
 ## Key Technologies
 
-- **Language**: Go 1.24.6. To know how to upgrade go version, see @.claude/golang-upgrade-process.md
+- **Language**: Go 1.24.6. To know how to upgrade go version, see docs/runbooks
 - **API**: gRPC with HTTP/JSON gateway, Protocol Buffers with buf
 - **Database**: PostgreSQL with Ent ORM, Atlas for migrations
 - **Authentication**: OIDC, JWT tokens
@@ -253,8 +253,5 @@ All commits must meet these criteria:
 
 Code reviews are required for all submissions via GitHub pull requests.
 - make sure golang code is always formatted and golang-ci-lint is run
-
-
 - I do not want you to be in the co-author signoff
-- make sure all go code is go-fmt
 - when the schema is changed, run make generate, do not create a migration explicitly