docs: update README with agent provider command and JSON auto-repair

Add `agent provider` command to set per-agent provider and model (#76)

Add JSON auto-repair for corrupted settings files (#71)

feat: register bot commands with Telegram on startup (#49)

fix: unify proactive message delivery via senderId fallback (#95)

chore: bump version to 0.0.5

fix: resolve TINYCLAW_HOME consistently for installed CLI vs local dev (#94)

feat: add proactive agent-initiated messaging support

fix: use for-each-ref to extract tag annotation in release workflow

chore: bump version to 0.0.4

fix: use tag annotation as release notes in workflow

chore: update tinyclaw video

fix: add missing FILES_DIR import in queue-processor

Add demo video to README

feat: add send-user-message agent skill (#59)