Feishu table and code block rendering fixes

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

• #20275 fix(feishu): force text mode for markdown tables (salvage #13723)

  merged to main

  files: gateway/platforms/feishu.py

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  • gateway/platforms/feishu.py

    @@ -153,6 +153,9 @@
         r"(^#{1,6}\s)|(^\s*[-*]\s)|(^\s*\d+\.\s)|(^\s*---+\s*$)|(```)|(`[^`\n]+`)|(\*\*[^*\n].+?\*\*)|(~~[^~\n].+?~~)|(<u>.+?</u>)|(\*[^*\n]+\*)|(\[[^\]]+\]\([^)]+\))|(^>\s)",
         re.MULTILINE,
     )
    +# Detect markdown tables: a line starting with | followed by a separator line.
    +# Feishu post-type 'md' elements do not render tables, so we force text mode.
    +_MARKDOWN_TABLE_RE = re.compile(r"^\|.*\|\n\|[-|: ]+\|", re.MULTILINE)
     _MARKDOWN_LINK_RE = re.compile(r"\[([^\]]+)\]\(([^)]+)\)")
     _MARKDOWN_FENCE_OPEN_RE = re.compile(r"^```([^\n`]*)\s*$")
     _MARKDOWN_FENCE_CLOSE_RE = re.compile(r"^```\s*$")
    @@ -3995,6 +3998,12 @@ def _is_duplicate(self, message_id: str) -> bool:
         # =========================================================================
     
         def _build_outbound_payload(self, content: str) -> tuple[str, str]:
    +        # Feishu post-type 'md' elements do not render markdown tables; sending
    +        # table content as post causes the message to appear blank on the client.
    +        # Force plain text for anything that looks like a markdown table.
    +        if _MARKDOWN_TABLE_RE.search(content):
    +            text_payload = {"text": content}
    +            return "text", json.dumps(text_payload, ensure_ascii=False)
             if _MARKDOWN_HINT_RE.search(content):
                 return "post", _build_markdown_post_payload(content)
             text_payload = {"text": content}