docs: add SupabaseLogger to swift-log migration to v3 plan

- Add Logging System Modernization to Phase 6 (Developer Experience)
- Include breaking change: Drop SupabaseLogger in favor of swift-log dependency
- Add tasks for updating all modules, configuration, and documentation
- Update V3_CHANGELOG.md with breaking change and new features
- Add modern logging system features to changelog

This migration will standardize logging across the Swift ecosystem and improve
developer experience with better logging integration.

Author: grdsdev

V3_CHANGELOG.md

@@ -47,6 +47,9 @@
 #### Functions
 - **BREAKING**: Enhanced with Alamofire networking integration
 
+#### Logging System
+- **BREAKING**: Drop SupabaseLogger in favor of `swift-log` dependency
+
 ### ✨ New Features
 
 #### Infrastructure
@@ -96,6 +99,11 @@
 - [x] Improved response parsing
 - [x] Retry configuration and timeout support
 
+#### Logging System
+- [ ] Modern logging system using `swift-log` dependency
+- [ ] Standardized logging across all modules
+- [ ] Better integration with Swift ecosystem logging tools
+
 ### 🛠️ Improvements
 
 #### Developer Experience

V3_PLAN.md

@@ -109,6 +109,12 @@ Current modules will be maintained:
   - [ ] Better error messages
   - [ ] Improved debugging information
 
+- [ ] **Logging System Modernization** (Dependencies: Core API redesign complete)
+  - [ ] **BREAKING**: Drop SupabaseLogger in favor of `swift-log` dependency
+  - [ ] Update all modules to use swift-log Logger
+  - [ ] Update configuration options to use swift-log
+  - [ ] Update examples and documentation
+
 - [x] **Documentation & Examples** (Dependencies: All API changes complete)
   - [x] Update all code examples with v3.0.0 features
   - [x] Create migration examples