Add professional enhancements: GitHub Actions CI/CD, badges, topics, and fix README links

Author: guardsarm

.github/workflows/ci.yml

@@ -0,0 +1,51 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@stable
+      - name: Run tests
+        run: cargo test --verbose
+
+  fmt:
+    name: Format
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+      - name: Check formatting
+        run: cargo fmt -- --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+      - name: Run clippy
+        run: cargo clippy -- -D warnings
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@stable
+      - name: Build
+        run: cargo build --verbose --release

README.md

@@ -1,5 +1,10 @@
 # Rust Transaction Validator
 
+[![CI](https://github.com/guardsarm/rust-transaction-validator/actions/workflows/ci.yml/badge.svg)](https://github.com/guardsarm/rust-transaction-validator/actions/workflows/ci.yml)
+[![Crates.io](https://img.shields.io/crates/v/rust-transaction-validator.svg)](https://crates.io/crates/rust-transaction-validator)
+[![Documentation](https://docs.rs/rust-transaction-validator/badge.svg)](https://docs.rs/rust-transaction-validator)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
 A memory-safe financial transaction validator for fraud detection and regulatory compliance. Built with Rust to eliminate vulnerabilities in critical financial transaction processing.
 
 ## Security-First Design
@@ -236,17 +241,17 @@ This library provides technical validation tools. Users are responsible for ensu
 
 ## Related Projects
 
-- [rust-secure-logger](https://github.com/your-username/rust-secure-logger) - Secure logging for audit trails
-- [rust-crypto-utils](https://github.com/your-username/rust-crypto-utils) - Cryptographic utilities
-- [rust-threat-detector](https://github.com/your-username/rust-threat-detector) - SIEM threat detection
+- [rust-secure-logger](https://github.com/guardsarm/rust-secure-logger) - Secure logging for audit trails
+- [rust-crypto-utils](https://github.com/guardsarm/rust-crypto-utils) - Cryptographic utilities
+- [rust-threat-detector](https://github.com/guardsarm/rust-threat-detector) - SIEM threat detection
 
 ## Citation
 
 If you use this validator in research or production systems, please cite:
 
 ```
 Awunor, T.C. (2024). Rust Transaction Validator: Memory-Safe Financial Transaction Processing.
-https://github.com/your-username/rust-transaction-validator
+https://github.com/guardsarm/rust-transaction-validator
 ```
 
 ---