Add active outreach funnel dashboard

src/database/candidate-queue-repository.ts

@@ -243,6 +243,14 @@ export class CandidateQueueRepository {
       .get() as { count: number }).count;
   }
 
+  getOldestActiveAt(): number | null {
+    const row = this.db.prepare(`
+      SELECT MIN(discovered_at) AS at FROM candidate_queue
+      WHERE status IN (${ACTIVE_STATUSES.map(() => '?').join(', ')})
+    `).get(...ACTIVE_STATUSES) as { at: number | null };
+    return row.at;
+  }
+
   getStats(): CandidateQueueStats {
     const statuses: CandidateStatus[] = ['discovered', 'screening', 'ready', 'sending', 'retryable', 'sent', 'rejected'];
     const byStatus = Object.fromEntries(statuses.map((status) => [status, 0])) as Record<CandidateStatus, number>;
@@ -265,6 +273,29 @@ export class CandidateQueueRepository {
     };
   }
 
+  listActive(limit = 500): CandidateQueueRecord[] {
+    if (!Number.isInteger(limit) || limit < 1 || limit > 500) {
+      throw new Error('Candidate queue limit must be an integer between 1 and 500');
+    }
+    const rows = this.db.prepare(`
+      SELECT * FROM candidate_queue
+      WHERE status IN (${ACTIVE_STATUSES.map(() => '?').join(', ')})
+      ORDER BY
+        CASE status
+          WHEN 'sending' THEN 1
+          WHEN 'screening' THEN 2
+          WHEN 'ready' THEN 3
+          WHEN 'retryable' THEN 4
+          ELSE 5
+        END,
+        priority DESC,
+        post_created_at DESC,
+        discovered_at ASC
+      LIMIT ?
+    `).all(...ACTIVE_STATUSES, limit) as Array<Record<string, unknown>>;
+    return rows.map((row) => this.mapRow(row));
+  }
+
   private claim(
     from: 'discovered' | 'ready',
     to: 'screening' | 'sending',
@@ -298,6 +329,10 @@ export class CandidateQueueRepository {
     const row = this.db.prepare('SELECT * FROM candidate_queue WHERE post_id = ?')
       .get(postId) as Record<string, unknown> | undefined;
     if (!row) return null;
+    return this.mapRow(row);
+  }
+
+  private mapRow(row: Record<string, unknown>): CandidateQueueRecord {
     return {
       postId: row.post_id as string,
       subreddit: row.subreddit as string,