feat: relaunch IronLog as the native Android app

[Yannam-Builds]

Outcome Replace the stale prototype landing-page snapshot with the current native Android IronLog app and a complete repository surface. ## What changed - publish the tested Kotlin/Jetpack Compose Android source and Gradle build - include ObjectBox models, 134 JVM tests, app assets, widgets, backup/import paths, Health Connect, plans, recovery, and Iron Ledger features - remove the obsolete static site and 108-file noncompiled quarantine source set - add a new README, real runtime screenshots, product/design docs, contribution/security guidance, issue templates, and pull-request template - add two accessible animated SVGs with dark/light adaptation and reduced-motion fallbacks - add Android CI for tests, lint, and debug assembly - keep local.properties, release keystores, APK/AAB files, build output, user data, and local artifacts out of the published tree ## Verification - clean sanitized checkout: testDebugUnitTest lintDebug assembleDebug --no-daemon ? BUILD SUCCESSFUL - 134 tests, 0 failures, 0 errors - lint: 0 errors - debug APK produced without local properties or release signing material - SVG XML parsed; start/mid-animation frames rendered in Chromium and differed as expected - Mermaid architecture diagram rendered successfully - repository-relative README links resolve - staged publication tree contains no sensitive path or common secret signature matches ## Review notes This branch is based directly on the existing public main, so it is mergeable and preserves the repository's public history. The unrelated local development history, which once tracked release signing material, was deliberately not pushed. ## Remaining release work - confirm prior publication status for com.ironlogpro.app - rotate release signing credentials before store/public binary distribution - expand physical-device regression coverage - configure Play distribution only after the signing decision