6vision 018493a60b fix(wecom_bot): revert callback image cap to 512KB (2MB inline body rejected by WeCom) ...

The 2MB cap (matching the long-connection upload path) does not work for
the callback path: there the whole image is base64-embedded in an
AES-encrypted body returned on every poll. A ~1.5MB image (base64 ~2.1MB,
encrypted ~2.8MB) makes WeCom reject the finish packet and poll forever,
which also surfaces as a truncated text bubble and WeCom's own timeout
error. Cap well below that at 512KB so the finish packet is accepted.

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-06-15 19:22:16 +08:00

58 KiB

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