fix: ignore bot self-messages to avoid duplicate plugin processing

refactor: extract link and text processing utilities module

refactor: split plugin into parser, settings and sender modules

refactor: split parser flow into focused helper blocks

fix: preserve query parameters for unknown music platforms

feat: add QQ Music URL conversion (songmid to streamlined format)

fix: preserve essential URL parameters (id, song_id, etc) in music links

fix: clean up URL query parameters in music card links

feat: add music card parsing (com.tencent.music.lua)

feat: add configurable forward-fold switch and threshold for parse command

feat: fold parse command output with forward nodes when too long

feat: support tuwen card type as share card parser (小黑盒等平台)

fix: add jumpUrl field support for platform cards (小黑盒, etc)

fix: correct miniapp card field mapping (prompt→标题, title→来源)

refactor: simplify card output format (remove [小程序], rename labels)