feat: tasks app, security hardening, mobile fixes, iOS app shell

- Custom SQLite task manager replacing TickTick wrapper
- 73 tasks migrated from TickTick across 15 projects
- RRULE recurrence engine with lazy materialization
- Dashboard tasks widget (desktop sidebar + mobile card)
- Tasks page with project tabs, add/edit/complete/delete
- Security: locked ports to localhost, removed old containers
- Gitea Actions runner configured and all 3 CI jobs passing
- Fixed mobile overflow on dashboard cards
- iOS Capacitor app shell (Second Brain)
- Frontend/backend guide docs for adding new services
- TickTick Google Calendar sync re-authorized

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

mobile/ios/App/CapApp-SPM/.gitignore

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+.DS_Store
+/.build
+/Packages
+/*.xcodeproj
+xcuserdata/
+DerivedData/
+.swiftpm/config/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc

mobile/ios/App/CapApp-SPM/Package.swift

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+// swift-tools-version: 5.9
+import PackageDescription
+
+// DO NOT MODIFY THIS FILE - managed by Capacitor CLI commands
+let package = Package(
+    name: "CapApp-SPM",
+    platforms: [.iOS(.v15)],
+    products: [
+        .library(
+            name: "CapApp-SPM",
+            targets: ["CapApp-SPM"])
+    ],
+    dependencies: [
+        .package(url: "https://github.com/ionic-team/capacitor-swift-pm.git", exact: "8.3.0"),
+        .package(name: "CapacitorHaptics", path: "../../../node_modules/@capacitor/haptics"),
+        .package(name: "CapacitorKeyboard", path: "../../../node_modules/@capacitor/keyboard"),
+        .package(name: "CapacitorSplashScreen", path: "../../../node_modules/@capacitor/splash-screen"),
+        .package(name: "CapacitorStatusBar", path: "../../../node_modules/@capacitor/status-bar")
+    ],
+    targets: [
+        .target(
+            name: "CapApp-SPM",
+            dependencies: [
+                .product(name: "Capacitor", package: "capacitor-swift-pm"),
+                .product(name: "Cordova", package: "capacitor-swift-pm"),
+                .product(name: "CapacitorHaptics", package: "CapacitorHaptics"),
+                .product(name: "CapacitorKeyboard", package: "CapacitorKeyboard"),
+                .product(name: "CapacitorSplashScreen", package: "CapacitorSplashScreen"),
+                .product(name: "CapacitorStatusBar", package: "CapacitorStatusBar")
+            ]
+        )
+    ]
+)

mobile/ios/App/CapApp-SPM/README.md

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+# CapApp-SPM
+
+This package is used to host SPM dependencies for your Capacitor project
+
+Do not modify the contents of it or there may be unintended consequences.

mobile/ios/App/CapApp-SPM/Sources/CapApp-SPM/CapApp-SPM.swift

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+public let isCapacitorApp = true