feat: finalize root api.py with X-Auth-Secret auth security and clean pure sales cohort

check_remaining_zeros.py

@@ -0,0 +1,24 @@
+import sqlite3
+
+conn = sqlite3.connect("data/hiffi_catalog.db")
+cur = conn.cursor()
+
+cur.execute("""
+    WITH latest AS (
+        SELECT t.*, ROW_NUMBER() OVER (PARTITION BY t.artist_id ORDER BY t.last_synced_at DESC, t.telemetry_id DESC) as rn
+        FROM telemetry_metrics t
+    )
+    SELECT a.artist_id, a.artist_name, a.youtube_url, l.subscribers_count
+    FROM artists a
+    JOIN latest l ON a.artist_id = l.artist_id
+    WHERE a.image_verified_flag = 1 AND (l.total_views = 0 OR l.total_views IS NULL)
+    ORDER BY a.artist_name ASC
+""")
+
+rows = cur.fetchall()
+print(f"=== REMAINING ZERO-VIEW ARTISTS ({len(rows)}) ===")
+for i, r in enumerate(rows, 1):
+    subs = f"{r[3]:,}" if r[3] is not None else "0"
+    print(f"{i:2d}. {r[1]:<24} | Subs: {subs:>10} | URL: {r[2]}")
+
+conn.close()