- Add VISION_MODEL and VISION_PROVIDER env options with openrouter
default and provider auto-detection from the model id
- Add /veriavision, /configiavision and /about commands
- Support natural-language editing of files inside workspace/ and a
/baixar command to download them
- Replace config-based timezone with system-local time detection
- Add module version/author/license metadata
- Document development conventions in new RULES.md and update
README.md/DEPLOY.md with the new commands and env vars
