tracelet_platform_interface

• CHORE: Update cross-package dependency constraints to ^1.4.2.

• CHORE: Update cross-package dependency constraints to ^1.4.1.

• FEAT: Add isDatabaseEncrypted() and encryptDatabase() platform methods for encrypted SQLite support.
• FEAT: Add getAttestationToken() platform method for device attestation (Play Integrity / App Attest).
• FEAT: Add getDeadReckoningState() platform method for dead reckoning position estimation.
• FEAT: Add getCarbonReport() platform method for carbon emission estimation from tracked journeys.
• CHORE: Update cross-package dependency constraints to ^1.4.0.

• FIX: Add offset field to SQLQuery to match native platform handlers that read it.
• PERF: Optimize DeltaEncoder — 2.1x faster encode via cached DateTime parsing and precomputed rounding factors.
• PERF: Optimize GeoUtils.haversine — eliminate redundant sqrt, precompute pi/180, inline _toRad.
• DOCS: Clarify getCount() ignores limit/offset/order from SQLQuery.

• CHORE: Update cross-package dependency constraints to ^1.3.5.

• CHORE: Patch bump for federation consistency with tracelet 1.3.4.

• CHORE: Patch bump for federation consistency with tracelet 1.3.3.

• CHORE: Patch bump for federation consistency with tracelet 1.3.2.

• CHORE: Patch bump for federation consistency with tracelet 1.3.1.

• CHORE: Version bump for federation consistency with tracelet 1.3.0.

New Enums

• FEAT: Add NotificationPriority enum — min, low, defaultPriority, high, max — replacing raw int for Android foreground notification priority.
• FEAT: Add HashAlgorithm enum — sha256, sha384, sha512 — replacing String for audit trail hash algorithm configuration.

New Algorithms

• FEAT: Add BatteryBudgetEngine — a pure-Dart feedback control loop that automatically adjusts distanceFilter, desiredAccuracy, and periodic interval to stay within a configurable battery budget (% drain/hour). Compares measured drain against target every 5 minutes; if over budget, increases distance filter (up to 1000 m) and degrades accuracy (high → medium → low → veryLow → passive); if under budget, tightens distance filter (down to 10 m) and improves accuracy. Includes BudgetAdjustmentEvent with currentBatteryDrain, targetBudget, newDistanceFilter, newDesiredAccuracy, and optional newPeriodicInterval.
• FEAT: Add CarbonEstimator — per-trip and cumulative CO₂ emission calculator using mode-specific emission factors (gCO₂/km). Default factors use EU EEA 2024 averages: car = 192, bus = 89, train = 41, walking/cycling = 0. Accepts GPS coordinates + activity type from activity recognition, accumulates distance per mode via Haversine, and provides structured TripCarbonSummary with totalCarbonGrams, totalDistanceMeters, carbonByMode, distanceByMode, and dominantMode. Tracks cumulative totals across multiple trips for fleet/compliance reporting.
• FEAT: Add DeltaEncoder — batch location compression codec using delta encoding. First location in a batch is transmitted in full (marked ref: true); subsequent positions sent as deltas with shortened field names (la = Δlatitude, lo = Δlongitude, t = Δtime in seconds, s = Δspeed, h = Δheading with shortest-arc normalization, a = Δaccuracy, al = Δaltitude, b = Δbattery). Coordinate precision configurable (5 = ~1.1 m, 6 = ~0.11 m). Symmetric encode()/decode() for bidirectional use. Achieves 60–80% payload reduction for high-frequency tracking batches.
• FEAT: Add RTree<T> — generic R-tree spatial index enabling O(log n) geofence proximity queries versus O(n) linear search. Supports insert(lat, lng, radius, data), remove(data), queryCircle(lat, lng, radiusMeters), and queryBBox(minLat, minLng, maxLat, maxLng). Uses quadratic split strategy, latitude-corrected degree-to-meter bbox conversion, and Haversine post-filtering for accurate circle queries. Handles 10,000+ geofences with sub-millisecond lookup times.

Changes

• FEAT: Export BatteryBudgetEngine, BudgetAdjustmentEvent, CarbonEstimator, TripCarbonSummary, DeltaEncoder, and RTree from the algorithms.dart barrel file.
• REFACTOR: Update GeofenceEvaluator and LocationProcessor for improved algorithm integration with new sparse updates and dead reckoning configuration.

🎉 Stable Release

• FEAT: First stable release of tracelet_platform_interface.
• REFACTOR: Remove third-party company name references — use generic flutter_background_geolocation throughout.
• All APIs are finalized and production-ready.

Performance Audit — Dart algorithm optimizations

• PERF: Use Float64List for Kalman filter state matrices, add _pTemp scratch buffer (D-C3).
• PERF: In-place _p.fillRange() in Kalman.reset() instead of re-allocating (D-M7).
• PERF: Bound TripManager waypoints list to 5000 entries (D-H3).
• PERF: Use Queue<Map> with O(1) removeFirst() instead of List.removeAt(0) O(n) for waypoint cap trimming (D-L2).
• PERF: Merge isPointInPolygon precondition check into main loop — validates each vertex inline (D-M2).
• PERF: Cache _cachedInsideView in GeofenceEvaluator with invalidation at all 6 mutation points (D-M4).
• PERF: Remove dead num branch in _toDouble() — int/double already cover all num subtypes (D-L1).
• REFACTOR: matchesSchedule() now delegates to parse() to eliminate duplicated parsing logic (D-L3).

• CHORE: Version bump for platform consistency.

• CHORE: Version bump for platform consistency.

• DOCS: Fix unresolved dartdoc references ([GeoConfig], [GeoConfig.periodicLocationInterval]).
• DOCS: Add example/example.dart for pub.dev documentation score.

• FEAT: Add canScheduleExactAlarms() and openExactAlarmSettings() abstract methods to TraceletPlatform and MethodChannel implementations.

• FEAT: Add privacy zone abstract methods to TraceletPlatform and MethodChannel implementations.
• FEAT: Add audit trail abstract methods to TraceletPlatform and MethodChannel implementations.

• FEAT: Add TrackingMode.periodic enum value for periodic interval tracking.
• FEAT: Add startPeriodic() method to TraceletPlatform and MethodChannelTracelet.

• CHORE: Version bump for consistency.

• FEAT: AdaptiveSamplingEngine — multi-factor distance filter computation (activity type, battery level, charging state, speed). 33 unit tests.
• FEAT: HealthCheck model with HealthWarning enum (12 warning types) and HealthWarningDescription extension.
• FEAT: LocationProcessor integration with adaptive sampling via AdaptiveContext.

• CHORE: Version bump for proximity-based geofence monitoring release.

• DOCS: Improve README visuals with combined Android & iOS demo image.

• DOCS: Document iOS background hardening and session manager support in README.

• FEAT: getSettingsHealth() abstract method — OEM settings health check returning manufacturer, aggression rating, battery optimization status, and available OEM settings screens.
• FEAT: openOemSettings(String label) abstract method — open OEM-specific settings screens by label.
• FEAT: MethodChannelTracelet implementations for both new OEM methods.
• DOCS: Update README with OEM Compatibility API reference.

• DOCS: Update README with shared Dart algorithms description and mock detection reference.

• FEAT: MockDetectionLevel enum — disabled, basic, heuristic detection depth for mock/spoofed GPS.
• FEAT: LocationProcessor mock location filter — rejects locations with isMock: true when rejectMockLocations is enabled.
• FEAT: LocationProcessor timestamp monotonicity check — detects backward timestamps as heuristic spoof indicator (level ≥ 2).
• FEAT: LocationProcessor.mockDetectionLevel field + copyWith() support.

• REFACTOR: Remove dead TraceletEvents.trip constant and TraceletEvents.all list — trip events now produced by Dart TripManager.
• REFACTOR: TripManager now uses GeoUtils.haversine() instead of duplicate private _haversine() implementation.

• FEAT: LocationProcessor — shared Dart implementation of distance filtering, elasticity, accuracy filtering (adjust/ignore/discard), speed filtering, and odometer gating. Replaces duplicate native Kotlin/Swift code.
• FEAT: GeofenceEvaluator — shared Dart high-accuracy geofence proximity evaluation for circular and polygon geofences with ENTER/EXIT state tracking.
• FEAT: ScheduleParser — shared Dart schedule string parsing, window matching, and alarm calculation for cross-platform scheduling.
• FEAT: PersistDecider — shared Dart persistence decision logic based on PersistMode.
• FEAT: Export all 7 algorithm classes via algorithms.dart barrel file (GeoUtils, KalmanLocationFilter, TripManager, LocationProcessor, GeofenceEvaluator, ScheduleParser, PersistDecider).
• CHORE: 46 new unit tests across 4 test files (86 total algorithm tests).

• CHORE: Bump version to 0.5.5.

• CHORE: Bump version to 0.5.4.

• CHORE: Bump version to 0.5.3.

• CHORE: Bump version to 0.5.2.

• DOCS: Update README with links to all federated packages.

• FEAT: Web platform support.
• CHORE: Bump version to 0.5.0.

• FEAT: Add getMotionPermissionStatus() and requestMotionPermission() to platform interface.
• CHORE: Format all Dart files.

• FEAT: Add getLastKnownLocation() abstract method to platform interface.
• FEAT: Add ForegroundServiceConfig.enabled field to AppConfig for toggling foreground service.
• FEAT: Enhance getCurrentPosition() with persist, samples, maximumAge, and extras parameters for enterprise one-shot location requests.

• Fix LICENSE file format for proper SPDX detection on pub.dev.

• Bump Pigeon dependency from ^22.7.0 to ^26.1.7.

• Add SPDX license: Apache-2.0 identifier for pub.dev scoring.

• Initial release.
• Abstract platform interface with 38 methods.
• Pigeon-generated type-safe communication layer.
• 13 enum types for location, activity, geofence, and HTTP configuration.
• EventChannel definitions for 14 real-time event streams.