chore: version fmcd in tandem with fedimint

[okjodom]

For every major version of fedimint released, we will cut a release of FMCD

[Copilot]

Pull Request Overview

This pull request implements comprehensive observability and testing infrastructure for the fmcd (Fedimint Client Daemon) project, introducing event-driven architecture, webhooks, metrics collection, and extensive test coverage.

Key Changes:

• Added event bus system with handlers for logging and metrics collection
• Implemented webhook notification system with security features (SSRF protection, HMAC signatures)
• Created observability layer with request correlation, logging configuration, and sensitive data sanitization
• Introduced database instrumentation for query tracking and performance monitoring
• Added extensive integration and unit tests across multiple modules
• Refactored error handling with categorized error types
• Implemented health check endpoints with component-level monitoring

Reviewed Changes

Copilot reviewed 117 out of 134 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/integration/mod.rs	Module declarations for integration tests
tests/integration/phase2_observability_tests.rs	Comprehensive observability integration tests for event system
tests/integration/event_coverage_test.rs	Event emission and coverage tests for various event types
tests/integration/websocket_test.rs	WebSocket message format tests
tests/integration/api_test.rs	API and state integration tests
tests/config_tests.rs	Configuration management tests
tests/common/mod.rs	Test utilities and fixtures
tests/auth_tests.rs	Authentication and HMAC tests
src/webhooks/*	Webhook notification system with retry logic and security
src/observability/*	Correlation IDs, logging, and data sanitization
src/metrics/*	Prometheus metrics collection
src/health/*	Health check endpoints
src/events/*	Event bus and handler implementations
src/error/*	Enhanced error handling with categories
src/database/*	Database instrumentation layer
src/state.rs	Refactored application state with FmcdCore integration
src/lib.rs	Library structure with feature flags
src/core/*	Core business logic modules

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