feat: initial implementation of STRAP C library

- Add core library functions for safe string manipulation and time utilities
- Implement afgets, afread, strjoin, strjoin_va, strtrim functions
- Add struct timeval helper functions (add, sub, to_seconds)
- Include comprehensive unit tests
- Set up CI/CD with GitHub Actions for multi-platform testing
- Add documentation, examples, and contribution guidelines
- MIT licensed

Author: murapadev

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ""
+labels: ""
+assignees: ""
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Environment (please complete the following information):**
+
+- OS: [e.g. Ubuntu 20.04]
+- Compiler: [e.g. gcc 9.3]
+- Version: [e.g. v0.1]
+
+**Additional context**
+Add any other context about the problem here.

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Build on Linux/macOS
+      if: runner.os != 'Windows'
+      run: |
+        make
+
+    - name: Build on Windows
+      if: runner.os == 'Windows'
+      run: |
+        gcc -Wall -Wextra -O2 -c strap.c -o strap.o
+        ar rcs libstrap.a strap.o
+
+    - name: Run tests on Linux/macOS
+      if: runner.os != 'Windows'
+      run: |
+        cd tests
+        gcc -I.. -L.. -o test_strap test_strap.c -lstrap
+        ./test_strap
+
+    - name: Run tests on Windows
+      if: runner.os == 'Windows'
+      run: |
+        cd tests
+        gcc -I.. -L.. -o test_strap.exe test_strap.c -lstrap
+        ./test_strap.exe

.gitignore

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+# Object files
+*.o
+*.obj
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Executables
+*.exe
+*.out
+*.app
+
+# Build directories
+build/
+dist/
+
+# IDE files
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Test executables
+tests/test_strap
+tests/test_strap.exe

CONTRIBUTING.md

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+# Contributing to STRAP
+
+Thank you for your interest in contributing to STRAP! We welcome contributions from the community.
+
+## How to Contribute
+
+1. Fork the repository
+2. Create a feature branch (`git checkout -b feature/amazing-feature`)
+3. Make your changes
+4. Add tests for new functionality
+5. Ensure all tests pass
+6. Commit your changes (`git commit -m 'Add some amazing feature'`)
+7. Push to the branch (`git push origin feature/amazing-feature`)
+8. Open a Pull Request
+
+## Development Setup
+
+```bash
+git clone https://github.com/murapadev/strap.git
+cd strap
+make
+# Run tests
+cd tests
+gcc -I.. -L.. -o test_strap test_strap.c -lstrap
+./test_strap
+```
+
+## Code Style
+
+- Use consistent indentation (4 spaces)
+- Add comments for complex logic
+- Follow C99 standards where possible
+- Write clear, descriptive function and variable names
+
+## Reporting Issues
+
+Please use the bug report template when creating issues. Include as much detail as possible to help us reproduce and fix the issue.
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the MIT License.

LICENSE

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+MIT License
+
+Copyright (c) 2025 murapadev
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

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+CC = gcc
+CFLAGS = -Wall -Wextra -O2
+AR = ar
+ARFLAGS = rcs
+
+TARGET = libstrap.a
+SOURCES = strap.c
+OBJECTS = $(SOURCES:.c=.o)
+
+PREFIX = /usr/local
+
+.PHONY: all clean install
+
+all: $(TARGET)
+
+$(TARGET): $(OBJECTS)
+	$(AR) $(ARFLAGS) $@ $^
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+clean:
+	rm -f $(OBJECTS) $(TARGET)
+
+install: $(TARGET)
+	install -d $(PREFIX)/lib
+	install -m 644 $(TARGET) $(PREFIX)/lib
+	install -d $(PREFIX)/include
+	install -m 644 strap.h $(PREFIX)/include