feat: Release v0.4.0 with enhanced LinkedIn 404 detection and Rig integration

Major enhancements:
- Enhanced LinkedIn 404 detection with comprehensive apostrophe encoding support
- Complete Rig framework integration examples with real-world patterns
- Added perfect one-line Tool implementation pattern
- Improved error handling for various LinkedIn response formats
- Added archive folder for test files
- Updated documentation with latest examples

Author: hghalebi

.gitignore

@@ -48,4 +48,8 @@ cobertura.xml
 # Project specific
 instruction.md
 PUBLISHING.md
-PUBLISH_INSTRUCTIONS.md
+PUBLISH_INSTRUCTIONS.md
+*.html
+
+# Archive folder for test and temporary files
+archive/

CHANGELOG.md

@@ -7,6 +7,34 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0] - 2025-07-31
+
+### Added
+- Enhanced LinkedIn 404 page detection with multiple apostrophe encoding support
+  - HTML-encoded apostrophes (`'`)
+  - XML-encoded apostrophes (`'`)
+  - Curly quotes variants
+- Comprehensive Rig framework integration examples
+  - `rig_working_example.rs` - Complete working example with Rig patterns
+  - `test_rig_integration.rs` - Comprehensive edge case testing
+  - `rig_xai_simple.rs` - Simple validation without external dependencies
+  - `rig_complete_integration.rs` - Full async trait implementation
+  - `rig_mock_xai.rs` - Mock xAI integration pattern
+- Enhanced README with complete Rig framework integration guide
+- Real-world use cases section in README
+- Improved examples/README.md with detailed patterns
+
+### Changed
+- Improved error message detection for non-existent LinkedIn pages
+- Updated detection logic to handle "Check your URL" variant
+- Enhanced README structure with better Rig integration examples
+- Added comprehensive function calling patterns
+
+### Fixed
+- Fixed detection of LinkedIn 404 pages with various text encodings
+- Improved handling of LinkedIn pages that return "This page doesn't exist"
+- Better detection of redirects to LinkedIn's 404 page
+
 ## [0.3.1] - 2025-07-31
 
 ### Added
@@ -105,7 +133,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Safe handling of all network errors
 - Proper timeout configuration for HTTP requests
 
-[Unreleased]: https://github.com/RustSandbox/Credify/compare/v0.3.1...HEAD
+[Unreleased]: https://github.com/RustSandbox/Credify/compare/v0.4.0...HEAD
+[0.4.0]: https://github.com/RustSandbox/Credify/compare/v0.3.1...v0.4.0
 [0.3.1]: https://github.com/RustSandbox/Credify/compare/v0.3.0...v0.3.1
 [0.3.0]: https://github.com/RustSandbox/Credify/compare/v0.2.1...v0.3.0
 [0.2.1]: https://github.com/RustSandbox/Credify/compare/v0.2.0...v0.2.1

Cargo.toml

@@ -1,9 +1,9 @@
 [package]
 name = "credify"
-version = "0.3.1"
+version = "0.4.0"
 edition = "2024"
 rust-version = "1.85"
-authors = ["Hamze Ghalebi <hamze.ghalebi@gmail.com>"]
+authors = ["Hamze Ghalebi <ghalebi@gmail.com>"]
 license = "MIT OR Apache-2.0"
 description = "A Rust library for validating LinkedIn profile URLs with LLM-friendly error messages"
 documentation = "https://docs.rs/credify"
@@ -41,3 +41,7 @@ serde_json = "1.0"
 
 [dev-dependencies]
 pretty_assertions = "1.4"
+rig-core = { version = "0.16.0", features = ["all"] }
+dotenv = "0.15"
+async-trait = "0.1"
+anyhow = "1.0"