feat(18-02): REST API handlers for /api/v1/* endpoints

- Stats, keys, providers, scan, recon, dorks, config endpoints
- JSON response wrappers with proper tags for all entities
- Filtering, pagination, 404/204/202 status codes
- SSE hub stub (full impl in task 2)
- Resolved merge conflict in schema.sql
- 16 passing tests covering all endpoints

pkg/storage/schema.sql

@@ -56,7 +56,6 @@ CREATE TABLE IF NOT EXISTS custom_dorks (
 CREATE INDEX IF NOT EXISTS idx_custom_dorks_source ON custom_dorks(source);
 CREATE INDEX IF NOT EXISTS idx_custom_dorks_category ON custom_dorks(category);
 
-<<<<<<< HEAD
 -- Phase 17: Telegram bot subscribers for auto-notifications.
 CREATE TABLE IF NOT EXISTS subscribers (
     chat_id INTEGER PRIMARY KEY,
@@ -76,19 +75,5 @@ CREATE TABLE IF NOT EXISTS scheduled_jobs (
     next_run DATETIME,
     created_at DATETIME DEFAULT CURRENT_TIMESTAMP
 );
-=======
--- Phase 17: scheduled scan jobs for cron-based recurring scans.
-CREATE TABLE IF NOT EXISTS scheduled_jobs (
-    id          INTEGER PRIMARY KEY AUTOINCREMENT,
-    name        TEXT NOT NULL,
-    cron_expr   TEXT NOT NULL,
-    scan_path   TEXT NOT NULL,
-    enabled     INTEGER NOT NULL DEFAULT 1,
-    notify      INTEGER NOT NULL DEFAULT 1,
-    last_run_at DATETIME,
-    next_run_at DATETIME,
-    created_at  DATETIME DEFAULT CURRENT_TIMESTAMP
-);
 
 CREATE INDEX IF NOT EXISTS idx_scheduled_jobs_enabled ON scheduled_jobs(enabled);
->>>>>>> worktree-agent-a39573e4