feat(mobile): add Kotlin Multiplatform mobile client under apps/mobile

[kareemessam09]

Summary

Adds the OpenShip mobile client under apps/mobile, implemented with Kotlin Multiplatform and Compose Multiplatform for Android.

This integrates the mobile application directly into the monorepo as @repo/mobile, adhering to the client-side architecture discussed in the repository discussions.

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Architecture & Design Alignment

1. Client-Side Single Source of Truth:

   • The mobile client interacts directly with standard OpenShip HTTP, SSE, and MCP API endpoints (/api/projects, /api/deployments, /api/system/monitor/stream, and /api/mcp).
   • Introduces no intermediate proxy servers or local daemons.

2. Monorepo Integration (@repo/mobile):

   • Registered as a workspace package under apps/mobile.
   • Added root build script "build:mobile": "bun run --cwd apps/mobile build".
   • Scoped .gitignore rules for Android and Gradle build artifacts.

3. Security & Credentials:

   • Personal Access Tokens (PATs) are encrypted on-device via Android KeyStore with AES-256 GCM (AndroidTokenStorage.kt).
   • Cleartext HTTP is strictly limited to local subnets and loopback addresses in network_security_config.xml.

4. Brand & Design Parity:

   • Integrated official OpenShip branding and SVG/vector assets.
   • 1:1 token-level theme parity (theme.css) supporting Dark, Dim, and Light modes.

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Core Features

• Instance Connection: Multi-instance configuration with health probing (/api/health/env), authentication mode resolution (local, saas, none), and token validation.
• Projects & Deployments: Real-time project overview, active deployment status, framework identification, and commit metadata.
• Live Deployment Logs: Real-time SSE streaming (/api/deployments/:id/stream) with Base64 decoding, ANSI color parsing, build stage indicators, and auto-scrolling.
• Server Telemetry: Real-time SSE telemetry (/api/system/monitor/stream) with gauges and sparkline charts for CPU, RAM, disk, and load averages.
• MCP Actions: Gated Redeploy and Rollback write actions via /api/mcp with confirmation dialogs and automatic fallback for read-only tokens.
• Packaging: Configured R8 minification, resource shrinking, and per-ABI APK splits (~4.7MB per release binary).

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Verification

All automated test suites pass locally:

cd apps/mobile
./gradlew allTests
./gradlew assembleRelease

Planned Follow-up

• SSH Fresh Server Bootstrap: A dedicated onboarding step for fresh VPS instances (installing the OpenShip CLI over SSH and establishing local port forwarding) will be submitted as a separate, focused pull request.