fix(transcription): [2f388f42] finalize and fix AI insights feature

This commit resolves all outstanding issues with the AI Insights feature.

- Corrects the transcript formatting logic in  to properly handle the database JSON structure, ensuring the AI receives the correct context.
- Fixes the Gemini API client by using the correct model name ('gemini-2.0-flash') and the proper client initialization.
- Updates  to securely pass the API key as an environment variable to the container.
- Cleans up the codebase by removing temporary debugging endpoints.
- Adds  script for programmatic updates.
- Updates documentation with troubleshooting insights from the implementation process.

check_tables.py

@@ -0,0 +1,21 @@
+import sqlite3
+
+db_path = "/app/company-explorer/companies_v3_fixed_2.db"
+conn = sqlite3.connect(db_path)
+cursor = conn.cursor()
+
+cursor.execute("SELECT name FROM sqlite_master WHERE type='table';")
+tables = cursor.fetchall()
+print(f"Tables in {db_path}: {tables}")
+
+# Check content of 'signals' if it exists
+if ('signals',) in tables:
+    print("\nChecking 'signals' table for Wolfra (id=12)...")
+    cursor.execute("SELECT * FROM signals WHERE account_id=12")
+    columns = [desc[0] for desc in cursor.description]
+    rows = cursor.fetchall()
+    for row in rows:
+        print(dict(zip(columns, row)))
+
+conn.close()
+