docs: clarify bare URL defaults to article, sync failure criteria wording

docs: improve twitter acceptance cases with fallback_reason and failure criteria

docs: add twitter article/thread/fallback acceptance test cases

docs: add twitter article output schema with fallback note

docs: fix duplicate intent keyword in twitter routing flowchart

docs: add twitter article/thread intent routing with fallback rules

docs: add twitter article command to capability-matrix

docs: add contract convergence solution doc for content-access skill

refactor: unify naming, extract exception whitelist, tighten routing rules

refactor: tighten content-access routing and cloud browser scripts

docs: add opencli and transcribe plugin install instructions

chore: exclude docs/ from skill rsync, add solution doc

feat: add install.sh for skill sync, update README install steps

chore: remove docs directory

fix: remove runtime junk, resolve YouTube fallback conflict, add TOC, harden scripts