Method setMetadata

src/db/queries.ts:4000–4004

* Set a metadata key-value pair (upsert)

(key: string, value: string)

   * Set a metadata key-value pair (upsert)
   */
  setMetadata(key: string, value: string): void {
    this.db.prepare(
      'INSERT INTO project_metadata (key, value, updated_at) VALUES (?, ?, ?) ON CONFLICT(key) DO UPDATE SET value = excluded.value, updated_at = excluded.updated_at'
    ).run(key, value, Date.now());
  }

  /**
   * Get all metadata as a key-value record