Resolve a Colombian city name to its 8-digit DANE municipal code and validated postal code — required for all Colombian carriers (Coordinadora, ServiEntrega, TCC, etc.).

When to use: Call this endpoint before /ship/rate or /ship/generate when shipping within Colombia. Colombian carriers require the DANE code in the city field of origin and destination addresses, not the human-readable city name.

Key behaviors:

• Full-text search against the official DANE municipality catalog
• Returns the DANE code (city), normalized name (name), and department code (state)
• No authentication required
• Colombia only (country: "CO")