feat(claude): add database slash commands for common operations

Add 5 new slash commands for database management:

- /db-check - Check database connection and show table row counts
- /db-migrate - Create and apply Prisma migrations (production)
- /db-push - Push schema changes without migrations (development)
- /db-studio - Open Prisma Studio visual database browser
- /db-seed - Run seed script to initialize database

These commands make it easy to test database connectivity, run migrations,
view data in Prisma Studio, and seed the database with initial data.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.claude/commands/db-check.md

@@ -0,0 +1,13 @@
+---
+description: Check if database connection is working and show table counts
+---
+
+Check if the database connection is working by:
+
+1. Running `pnpm --filter=@tpmjs/db db:studio` in the background to verify Prisma can connect
+2. If successful, kill the studio process immediately
+3. Report connection status to the user
+
+Then show me the current row counts for all tables (Tool, SyncCheckpoint, SyncLog) by writing a quick script that imports the Prisma client and queries each table.
+
+This helps verify the database is properly configured and shows if any data exists.

.claude/commands/db-migrate.md

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+---
+description: Create and apply a Prisma migration
+---
+
+Create and apply a new Prisma migration:
+
+1. Run `pnpm --filter=@tpmjs/db db:migrate` to create and apply a migration
+2. The migration will be named automatically based on changes
+3. After migration completes, regenerate the Prisma client with `pnpm --filter=@tpmjs/db db:generate`
+4. Report the results to the user
+
+This is used for production-ready database schema changes that create migration files.

.claude/commands/db-push.md

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+---
+description: Push Prisma schema changes to database (dev only)
+---
+
+Push the current Prisma schema to the database without creating migrations:
+
+1. Run `pnpm --filter=@tpmjs/db db:push` to sync schema changes to the database
+2. After push completes, regenerate the Prisma client with `pnpm --filter=@tpmjs/db db:generate`
+3. Report the results to the user
+
+This is useful for development when you want to quickly iterate on schema changes without creating migration files. Do NOT use this in production - use db:migrate instead.

.claude/commands/db-seed.md

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+---
+description: Seed the database with initial data
+---
+
+Run the database seed script to initialize the database with default data:
+
+1. Run `pnpm --filter=@tpmjs/db db:seed` to execute the seed script
+2. The seed script will create initial SyncCheckpoint records for the changes feed and keyword sync
+3. Report the results to the user
+
+This should be run once after creating the database to set up the initial sync checkpoints. It's safe to run multiple times - it will only create records if they don't already exist.

.claude/commands/db-studio.md

@@ -0,0 +1,13 @@
+---
+description: Open Prisma Studio to view and edit database data
+---
+
+Open Prisma Studio, a visual database browser:
+
+1. Run `pnpm --filter=@tpmjs/db db:studio` in the background
+2. Wait for the "Prisma Studio is up on http://localhost:5555" message
+3. Tell the user that Prisma Studio is now running at http://localhost:5555
+4. Remind the user they can view and edit all database tables (Tool, SyncCheckpoint, SyncLog) in the browser
+5. Tell them to use Ctrl+C in the terminal or kill the background process when done
+
+This provides a visual interface to browse, search, and edit database records.