feat: initial commit — README, community files, docs, templates

CHANGELOG.md

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+# Changelog
+
+All notable changes to WSA WebDev will be documented in this file.
+
+## [1.0.0] - 2026-07-12
+
+### Added
+- Initial release
+- WebDAV server with full protocol support
+- Web file manager SPA (dark/light themes)
+- ADB broadcast control (START, STOP, RESTART, STATUS, HEALTH)
+- Root filesystem access via Magisk
+- User storage access
+- Auto-start boot receiver
+- Health monitoring (30-second intervals)
+- Exponential backoff restart on failure
+- Zero external Kotlin dependencies