docs: add comprehensive README and MIT LICENSE

- Complete README with features, quick start, deployment guides
- Covers: standalone binary, Docker, Android/Termux, Linux systemd, Tailscale
- Documents all 13 providers, 10 channels, 14 tools, voice/vision, permissions
- Architecture diagram, CLI reference, configuration guide
- Contributing section inviting developers to join
- Roadmap of completed and planned features
- MIT LICENSE with V1Claw contributors copyright

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: amit-vikramaditya

LICENSE

@@ -1 +1,21 @@
+MIT License
 
+Copyright (c) 2026 V1Claw contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.