=== DingTalk Correct Parameter Format ===

Step 1: Get Token via GET + URL params
Token obtained: 34140e285e9c3cd5b2e33d77a05c0e64

Step 2: Upload File
{"errcode": 0, "errmsg": "ok", "media_id": "@lArPM2_kRE-1HaXOVWVfcs51lvti", "created_at": 1772683593807, "type": "file"}

Media ID: @lArPM2_kRE-1HaXOVWVfcs51lvti

Step 3: Send message with access_token as URL param
{"errcode": 300005, "errmsg": "token is not exist"}

=== FAILED ===
Error: token is not exist