* refactor: Rename handler package to handlers in carrier-connector
- Rename internal/handler directory to internal/handlers
- Update handler import path in main.go and routes.go
* feat: Add SM-DP+ handler with multi-carrier management and profile operations
- Add SMDPHandler struct with manager field and NewSMDPHandler constructor
- Add AddCarrier endpoint with JSON binding and carrier configuration support
- Add RemoveCarrier endpoint with carrier ID parameter validation
- Add DownloadProfile endpoint with 30-second timeout and context cancellation
- Add GetCarrierStatus endpoint returning all carriers with timestamp
- Add GetProfileStatus endpoint with EID/ICCID validation
* feat: Add SM-DP+ integration layer with multi-carrier system initialization and route registration
- Add SMDPIntegration struct with service, handler, repository, and logger fields
- Add NewSMDPIntegration constructor with default carrier initialization
- Add InitializeSystem method with carrier health logging and status tracking
- Add RegisterRoutes method with profile, carrier, health, and metrics endpoints
- Add healthHandler with carrier health status aggregation and degraded state detection
- Add metricsHandler
* feat: Add SM-DP+ service layer with multi-carrier management and profile download operations
- Add SMDPService struct with manager, repository, and logger fields
- Add NewSMDPService constructor with default config and background health checking
- Add InitializeDefaultCarriers with AT&T, Verizon, and T-Mobile DE configurations
- Add DownloadProfile method with context support and request logging
- Add GetOptimalCarrier wrapping SelectCarrier for best carrier selection
- Add GetCarrierHealth returning
* feat: Add SM-DP+ manager with multi-carrier load balancing, health checking, and profile operations
- Add DefaultManagerConfig with 30s health checks, 3 retries, and circuit breaker configuration
- Add CarrierConfig struct with ES2 settings, MCC/MNC, priority, and feature support
- Add ToCarrier method converting CarrierConfig to Carrier with metrics and capabilities
- Add HealthChecker with periodic carrier health monitoring and status evaluation
- Add LoadBalancer with weighted round-robin, least
- Add context.Context parameter to Publish method signature
- Replace context.Background() with provided context wrapped in timeout
- Rename timeout context variable from ctx to timeoutCtx for clarity
- Add bluemonday import to auth.go and subscriber.go
- Add UGCPolicy sanitization for username, email, firstName, lastName, and role in Register
- Add conditional XSS sanitization for firstName, lastName, email, and MSISDN in CreateSubscriber and UpdateSubscriber
- Replace Page and PageSize with Cursor and Limit in ListSubscribers query parameters
- Add HATEOAS links to CreateSubscriber, GetSubscriber
- Replace Page and PageSize with Cursor and Limit in ListSubscribersRequest
- Replace Total, Page, and PageSize with NextCursor and HasMore in ListSubscribersResponse
- Add default limit of 20 with max cap of 100 in ListSubscribers
- Replace ListSubscribers call with ListSubscribersCursor in subscriber_crud.go
- Remove unused database import from subscriber_crud.go
- Replace context.Background() with context.Without
- Add gin-csrf middleware import to main.go
- Add CSRF_SECRET environment variable support with default fallback warning
- Add CSRF middleware to Gin router with configurable secret
- Add default CSRF secret with production warning for missing environment variable
- Add ListSubscribersCursor method to Database with ID-based cursor pagination
- Add cursor, hasMore, and nextCursor support for efficient pagination
- Add status, organizationID, and search filters to cursor-based query
- Add limit+1 fetch strategy to detect additional results
- Add fmt import to database/crud.go
- Add TEST_PASSWORD environment variable support in integration tests with default fallback
- Replace hard
- Add validateURL method to ChargingEngineClient with private IP blocking and domain whitelisting
- Add SSRF validation to CheckCredit, DeductCredit, AddCredit, GetBalance, and HealthCheck endpoints
- Add errors, net, url, and slices imports to charging_client.go
- Update HealthCheck endpoint from /health to /v1/health for consistency
- Add allowed domains list including localhost, 127.0.0.1, charging
- Add Link struct with href, rel, and optional type fields
- Add Links map type for HATEOAS link collections
- Add SubscriberWithLinks and SubscriberListWithLinks wrapper types
- Add NewSubscriberLinks function generating self, update, delete, billing, and sessions links
- Add NewSubscriberListLinks function with self, create, and conditional next pagination links
- Replace nested if-let statements with let-chain pattern for VmRSS memory parsing in /proc/self/status
- Replace nested if-let statements with let-chain pattern for Redis used_memory parsing
- Wrap std::env::set_var calls in unsafe blocks in validation_tests.rs for MAX_BYTES_LIMIT and MAX_AMOUNT_LIMIT
- Replace nested if-let statements with let-chain pattern for Redis RPS parsing
- Update module reference from monitoring to monitoring_impl in monitoring.rs
- Change rust-version from "1.94" to "1.95" in workspace Cargo.toml
- Add validateURL method to ES2Client with private IP blocking and domain whitelisting
- Add SSRF validation to DownloadProfile and GetProfileStatus endpoints
- Add slices, errors, net, and url imports to es2/client.go
- Update CLI charging API endpoints from /v1 to /api/v1 prefix
- Fix DeductCredit response handling to use nil
- Add GET /api/v1/subscribers endpoint with pagination and filtering parameters
- Add POST /api/v1/subscribers endpoint for subscriber creation
- Add GET /api/v1/subscribers/{id} and GET /api/v1/subscribers/imsi/{imsi} endpoints
- Add PUT /api/v1/subscribers/{id} endpoint for subscriber updates
- Add POST /api/v1/subscribers/{id}/suspend and /api/v1/subscribers/{id}/terminate endpoints
- Add Swagger definitions
- Add github.com/utrack/gin-csrf v0.0.0 for CSRF protection
- Add github.com/gin-contrib/sessions and related session management dependencies
- Add github.com/gorilla/context, gorilla/securecookie, and gorilla/sessions for session handling
- Add github.com/dchest/uniuri for unique identifier generation
- Add indirect dependencies for various session store implementations (redistore, memcache, mongostore)
- Add swaggo/files and swaggo/gin-swagger imports for Swagger documentation
- Change API route group prefix from "/v1" to "/api/v1"
- Add GET /api/v1/swagger/*any endpoint for Swagger UI documentation
- Update RBAC path from "/v1/users" to "/api/v1/users" for consistency
- Remove standard log import from server_metrics.go
- Add logrus import for structured logging
- Replace log.Printf with logrus.WithError for system metrics storage errors
- Replace log.Printf with logrus.WithError for subscriber count errors (total, active, suspended)
- Replace log.Printf with logrus.WithError for active sessions count errors
- Replace log.Printf with logrus.WithError for /proc/stat, /proc/meminfo, and /proc/net/dev read errors
- Change Rust edition from "2026" to "2024" in workspace Cargo.toml
- Remove duplicate expect_used lint rule from workspace lints
- Prefix unused account variable with underscore in calculate_usage_cost
- Split CARGO_MANIFEST_DIR assignment into separate variable in run_migrations
- Clone plan_id before moving plan in add_rating_plan handler
- Replace expect() with unwrap() in governor
- Add maps import to mq.go
- Replace manual for loop copying payload map with maps.Copy in PublishProfileEvent
- Simplify map merging logic while maintaining same functionality
- Add module-level documentation to lib.rs with usage example
- Document Claims and AuthConfig structs with examples in auth.rs
- Add ChargingEngine struct documentation with initialization example
- Document ChargingRule, SubscriberAccount, AccountStatus, UsageEvent, UsageType, and RatingPlan with examples in types.rs
- Add CircuitState, CircuitBreakerError, and CircuitBreaker documentation with examples in circuit_breaker.rs
- Add logrus import to invoice.go, subscriber_crud.go, subscriber_esim.go, and subscriber_lifecycle.go
- Replace fmt.Printf with logrus.WithError and WithField for structured error logging
- Update invoice email notification placeholder to use logrus.Info with invoice_id field
- Replace eSIM provisioning error print with logrus.Warn including subscriber_id field
- Add comment explaining derived
- Change Redis key prefix from "block:" to "blocked:" in unblock_user for consistency
- Replace is_some() check with if let pattern in block_user to avoid unused variable
- Add existence check before attempting to delete blocked user key in unblock_user
- Use if let pattern for blocked status check in unblock_user
- Return Ok(()) silently if user is not blocked instead of attempting deletion
- Set applied_rules capacity to 6 (maximum number of charging rules that can be applied)
- Set keys capacity to 100 in get_usage_history and get_all_accounts (matches SCAN batch size)
- Add comments explaining capacity choices for each Vec initialization
- Change AuthConfig::from_env() return type from Self to Result<Self, String>
- Remove default JWT_SECRET fallback, require environment variable to be set
- Add validation requiring JWT_SECRET to be at least 32 characters for security
- Replace expect() with ok_or_else in create_token timestamp calculation
- Replace expect() with map_err in DATABASE_URL environment variable loading
- Remove unused _account variable in calculate_usage_cost
- Replace HashMap::with_capacity with HashMap::new and use iterator chain in get_all_plans
- Add std::process::Command import and set current_dir to repo root in run_migrations
- Add comment explaining directory change to locate migrations folder
- Replace expect() with unwrap_or_else providing fallback JSON in SubscriberAccount and UsageEvent
- Add thiserror::Error derive to ChargingError enum
- Replace manual fmt::Display implementation with #[error] attributes on each variant
- Remove manual std::error::Error implementation (provided by thiserror)
- Remove std::fmt import as it's no longer needed
- Maintain same error message formats and functionality
- Remove clone() from rating plan parameter in add_rating_plan call
- Remove clone() calls from ChargingEngineClient and EbpfManager initialization
- Remove clone() from Redis client Arc wrapping
- Remove clone() calls from PacketGatewayConfig field assignments
- Replace expect() with proper error handling using map_err and anyhow in health check server
- Remove clone() from IP string in session data collection
- Add cargo-audit metadata section with placeholder for ignored advisories
- Forbid unsafe_code at workspace level
- Enable all and pedantic clippy warnings
- Deny unwrap_used, expect_used, and panic to enforce error handling
- Add thiserror dependency to charging-engine for improved error handling
- Add filepath import for path manipulation
- Calculate repository root path relative to carrier-connector location (../../)
- Set cmd.Dir to repository root before executing Goose command
- Add comment explaining directory change to locate migrations folder
- Ensure migrations can be found from carrier-connector's nested location
- Move all subscriber, payment method, transaction, and notification CRUD operations to crud.go
- Remove models import from database.go as it's no longer needed
- Keep database initialization, connection management, and IMSI allocation in database.go
- Maintain ListSubscribersRequest struct definition in crud.go alongside related functions
- Cast req.Status to string when passing to database.ListSubscribersRequest
- Ensure type compatibility between service and database layer status fields
- Add std::process::Command import for running external commands
- Implement run_migrations function to execute goose postgres migrations
- Call run_migrations in RatingPlansRepo::connect before returning repository instance
- Update function comments to reflect automatic migration execution on startup
- Add error handling and output capture for migration failures
- Add tracing log for successful migration
- Add os/exec import for running external commands
- Implement runMigrations function to execute goose postgres migrations
- Call runMigrations in NewPostgresProfileStore before returning store instance
- Update function comment to reflect automatic migration execution on startup
- Add error handling and output capture for migration failures
- Remove AutoMigrate call for profileRow from NewPostgresProfileStore
- Update function comment to reference migration system (make db-migrate) instead of inline schema creation
- Add note that esim_profiles table is created by migration system
- Remove error handling for AutoMigrate execution
- Remove CREATE TABLE IF NOT EXISTS query for rating_plans table from connect() method
- Update comment to reference migration system (make db-migrate) instead of inline schema creation
- Add note that rating_plans table is created by 000001_init_rating_plans.up.sql migration
- Remove sqlx::query execution and error mapping for schema creation
- Keep database connection pool and circuit breaker initialization
- Remove duplicate CreditManager and RatingPlansRepo imports from engine.rs
- Add circuit_breaker module to main.rs imports
- Comment out rate_limit module in lib.rs
- Update rate_limit.rs imports to use GovernorConfig and GovernorLayer directly
- Change GovernorConfigBuilder to GovernorConfig::builder() and update config initialization
- Update GovernorLayer::new() to take config reference
- Add ebpf feature flag to Cargo.toml with default disabled
- Make aya and aya-log dependencies optional and tied to ebpf feature
- Add #[cfg(feature = "ebpf")] conditional compilation directives for EbpfManager imports and usage
- Add feature-gated readiness check logic (ebpf_ok only checked when feature enabled)
- Add feature-gated metrics_handler implementations (full version with eBPF, stub version without)
- Change
- Change eBPF build from required to optional with graceful fallback
- Add match statement to handle build success, failure, and missing cargo-build-bpf cases
- Add cargo warnings when eBPF build fails or cargo-build-bpf is not installed
- Remove panic on build failure to allow compilation without eBPF toolchain
- Remove thiserror 2.0.18 dependency from Cargo.toml
- Comment out CircuitBreakerError import and all circuit breaker execute calls in credit_management.rs
- Comment out redis_circuit_breaker and postgres_circuit_breaker fields in ChargingEngine struct
- Comment out circuit breaker initialization code in engine.rs
- Comment out circuit_breaker field and initialization in RatingPlansRepo
- Remove circuit breaker
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