feat: add Buy Me a Coffee sponsorship support

.github/FUNDING.yml

@@ -0,0 +1,24 @@
+# GitHub Sponsorship Configuration
+# These are supported funding model platforms for gh-manager-cli
+
+# GitHub Sponsors (preferred platform for recurring sponsorships)
+# Commented out until approved by GitHub
+# github: wiiiimm
+
+# Ko-fi (Buy Me Coffee alternative) - popular micro-donation platform
+# Uncomment and add your Ko-fi username when ready:
+# ko_fi: wiiiimm
+
+# Custom funding URLs - for Buy Me a Coffee and other platforms (max 4 URLs)
+custom:
+  - https://buymeacoffee.com/wiiiimm
+  # - https://www.paypal.me/wiiiimm
+
+# Additional supported platforms (uncomment and configure as needed):
+# patreon: your-patreon-username              # Subscription-based funding
+# open_collective: your-project-name          # Transparent funding for open source
+# tidelift: npm/gh-manager-cli                # Enterprise open source funding
+# community_bridge: your-project-name        # Linux Foundation funding platform
+# liberapay: your-liberapay-username         # European recurring donations
+# issuehunt: your-issuehunt-username         # Funding for specific GitHub issues
+# otechie: your-otechie-username             # Technical consulting platform

README.md

@@ -516,6 +516,14 @@ Highlights on deck:
 - Bulk selection and actions
 - Repository renaming
 
+## Support & Sponsorship
+
+If you find gh-manager-cli useful, consider supporting its development:
+
+☕ **[Buy Me a Coffee](https://buymeacoffee.com/wiiiimm)** - Support with coffee donations
+
+Your support helps maintain and improve this project. Thank you! 🙏
+
 ## License
 
 MIT

docs/SPONSORSHIP_PLATFORMS.md

@@ -0,0 +1,47 @@
+# GitHub Sponsorship Configuration Guide
+
+This document explains how to support the gh-manager-cli project through Buy Me a Coffee.
+
+## Current Sponsorship Platform
+
+### Buy Me a Coffee ☕
+- **URL:** [buymeacoffee.com/wiiiimm](https://buymeacoffee.com/wiiiimm)
+- **Type:** One-time and recurring donations
+- **Description:** Simple way to support the project with coffee donations
+- **Benefits:** 
+  - Quick one-time donations
+  - Monthly membership options
+  - No complex setup required
+  - Widely recognized platform
+
+## How It Works
+
+1. **GitHub Integration:** The "Sponsor" button appears on the repository page
+2. **Direct Link:** Clicking takes you to the Buy Me a Coffee page
+3. **Support Options:** Choose one-time or monthly support
+4. **Payment:** Secure payment through Buy Me a Coffee's platform
+
+## Configuration Details
+
+The sponsorship is configured through GitHub's `FUNDING.yml` file located at `.github/FUNDING.yml`:
+
+```yaml
+custom:
+  - https://buymeacoffee.com/wiiiimm
+```
+
+This configuration enables the "Sponsor" button on the repository page.
+
+## Why Support This Project?
+
+Your support helps:
+- 🚀 Maintain and improve gh-manager-cli
+- 🐛 Fix bugs and add new features
+- 📚 Keep documentation up-to-date
+- 💻 Support ongoing development
+
+Every coffee counts and is greatly appreciated! ☕
+
+## Thank You!
+
+A huge thank you to everyone who supports this project. Your contributions help keep gh-manager-cli free and open source for everyone.

tests/sponsorship.test.ts

@@ -0,0 +1,84 @@
+import { describe, it, expect } from 'vitest';
+import { readFileSync, existsSync } from 'fs';
+import { join } from 'path';
+
+describe('GitHub Sponsorship Configuration', () => {
+  const fundingYmlPath = join(process.cwd(), '.github', 'FUNDING.yml');
+  const sponsorshipDocsPath = join(process.cwd(), 'docs', 'SPONSORSHIP_PLATFORMS.md');
+
+  it('should have a FUNDING.yml file in .github directory', () => {
+    expect(existsSync(fundingYmlPath)).toBe(true);
+  });
+
+  it('should have Buy Me a Coffee configured', () => {
+    const content = readFileSync(fundingYmlPath, 'utf8');
+    expect(content).toContain('buymeacoffee.com/wiiiimm');
+    expect(content).toContain('custom:');
+  });
+
+  it('should contain Ko-fi configuration examples', () => {
+    const content = readFileSync(fundingYmlPath, 'utf8');
+    expect(content).toContain('ko_fi');
+    expect(content).toContain('Buy Me Coffee alternative');
+  });
+
+  it('should contain custom URL examples for Buy Me a Coffee', () => {
+    const content = readFileSync(fundingYmlPath, 'utf8');
+    expect(content).toContain('buymeacoffee.com');
+    expect(content).toContain('custom');
+  });
+
+  it('should list all supported platforms in comments', () => {
+    const content = readFileSync(fundingYmlPath, 'utf8');
+    const expectedPlatforms = [
+      'patreon',
+      'open_collective', 
+      'tidelift',
+      'community_bridge',
+      'liberapay',
+      'issuehunt',
+      'otechie'
+    ];
+
+    expectedPlatforms.forEach(platform => {
+      expect(content).toContain(platform);
+    });
+  });
+
+  it('should have comprehensive sponsorship documentation', () => {
+    expect(existsSync(sponsorshipDocsPath)).toBe(true);
+
+    const content = readFileSync(sponsorshipDocsPath, 'utf8');
+    expect(content).toContain('GitHub Sponsorship Platforms Guide');
+    expect(content).toContain('Ko-fi (Buy Me Coffee Alternative)');
+    expect(content).toContain('Custom URLs (Including Buy Me a Coffee)');
+  });
+
+  it('should have proper YAML structure', () => {
+    const content = readFileSync(fundingYmlPath, 'utf8');
+
+    // Should not have syntax errors - basic checks
+    expect(content).not.toContain('syntax error');
+    expect(content).toMatch(/github:\s+wiiiimm/);
+
+    // Should have proper commenting for inactive platforms
+    const lines = content.split('\n');
+    const commentedPlatforms = lines.filter(line => 
+      line.trim().startsWith('#') && 
+      (line.includes('ko_fi:') || line.includes('patreon:') || line.includes('custom:'))
+    );
+
+    expect(commentedPlatforms.length).toBeGreaterThan(0);
+  });
+
+  it('should reference sponsorship documentation in README', () => {
+    const readmePath = join(process.cwd(), 'README.md');
+    const content = readFileSync(readmePath, 'utf8');
+
+    expect(content).toContain('Support & Sponsorship');
+    expect(content).toContain('GitHub Sponsors');
+    expect(content).toContain('Ko-fi');
+    expect(content).toContain('Buy Me a Coffee');
+    expect(content).toContain('SPONSORSHIP_PLATFORMS.md');
+  });
+});