Cleanup skill logic files and update deployment scripts

feat(browser): OpenClaw-style aria snapshot + ref-based element addressing ...

- Implement semantic role tree (aria_snapshot) via Playwright ariaSnapshot() API
- Each interactive/content element annotated with [ref=eN] labels
- click/type/hover now accept CSS selectors OR ref strings (e.g. 'e3')
- navigate auto-returns an aria snapshot for immediate page context
- Browser results now include aria_snapshot in stdout for AI reasoning
- SKILL.md updated with recommended get_a11y -> click/type workflow
- tool.py forwards selector/text/x/y params to BrowserAction proto

fix(mesh): resolve synology shell bug + bandwidth throttle ...

- Changed mesh-terminal-control to fallback to /bin/sh if bash is missing.\n- Added ~25MB/s bandwidth throttle to Hub/Node file sync to prevent gRPC streaming timeouts.\n- Bumped agent version to 1.0.20.

feat(provision): dynamic browser support and installer resiliency ...

- Added browser support toggle to one-liner UI.\n- Updated provision endpoint to handle skip_browsers and disable skill in config.\n- Improved installer to handle --skip-browsers and avoid hardcoded URLs.\n- Added safeguards to browser skill to prevent whole-agent crashes.\n- Enabled invite_token auth for agent updates.\n- Bumps version to 1.0.15.

feat: add swarm control chat history clear & agent node auto-update system ...

- Added API and UI to clear chat history in Swarm Control while preserving node sync

- Implemented HTTP-based auto-update agent bootstrapper and core daemon

- Removed unused workflow profile and orphaned voice-interaction-handler skill

- Fixed voice chat response duplication and tool-belt instructions

fix(mesh): sync terminal status codes and implement periodic ghost mirror cleanup

fix(orchestration): resolve skill hallucination, brace crashes, and silent turns in swarm control ...

- Implemented strictly-worded 'Tool-belt' in system prompt to prevent hallucinating external skills.
- Replaced fragile .format() with robust .replace() for system prompts to prevent crashes on curly braces.
- Optimized TTS streaming: increased concurrency and reduced chunk sizes to eliminate mid-sentence pauses.
- Fixed 'silent turn' bug in Swarm Control by ensuring fallback content is yielded even if AI only produces reasoning/tools.
- Improved history formatting to handle assistant turns mapping to tool calls without main content.
- Corrected Gemini model fallback to gemini-1.5-flash.