Phase 2: Claude integration layer

- Add @anthropic-ai/claude-agent-sdk dependency
- Implement src/main/claude/phases.ts with phase configs (research/plan/implement)
- Implement src/main/claude/index.ts with SDK wrapper
  - query() integration with session management
  - Session resume support
  - Artifact read/write utilities
  - Phase advancement logic

1 files changed, 31 insertions, 0 deletions

diff --git a/src/main/db/index.ts b/src/main/db/index.ts
new file mode 100644
index 0000000..a77cdd4
--- /dev/null
+++ b/src/main/db/index.ts
@@ -0,0 +1,31 @@
+import Database from "better-sqlite3";
+import { app } from "electron";
+import path from "node:path";
+import fs from "node:fs";
+import { initSchema } from "./schema";
+
+let db: Database.Database | null = null;
+
+export function getDb(): Database.Database {
+  if (db) return db;
+
+  const dbDir = app.getPath("userData");
+  if (!fs.existsSync(dbDir)) {
+    fs.mkdirSync(dbDir, { recursive: true });
+  }
+
+  const dbPath = path.join(dbDir, "claude-flow.db");
+  db = new Database(dbPath);
+  db.pragma("journal_mode = WAL");
+  db.pragma("foreign_keys = ON");
+
+  initSchema(db);
+  return db;
+}
+
+export function closeDb() {
+  if (db) {
+    db.close();
+    db = null;
+  }
+}