feat: Add GitHub community files and update contact information

This commit introduces standard GitHub community files including:
- Issue templates for bug reports and feature requests.
- Pull Request template.
- Security policy with contact email.
- Funding configuration with GitHub Sponsors and custom links.

Updates include:
- .github/ISSUE_TEMPLATE/ with bug_report.md and feature_request.md.
- .github/PULL_REQUEST_TEMPLATE.md.
- .github/SECURITY.md with tukuai.ai@gmail.com as contact email.
- .github/FUNDING.yml with github: tukuaiai and custom crypto/social links.
- README.md with a new 联系方式 section and fixed Mermaid diagram syntax.
- .gitignore updated to track .github/ directory.

This ensures better community engagement and project maintainability.

.github/FUNDING.yml

@@ -0,0 +1,25 @@
+# GitHub 赞助配置文件
+# 这些链接将显示在 GitHub 仓库主页的“赞助”按钮旁边。
+
+github: tukuaiai # 您的 GitHub 用户名，例如: [octocat]
+# patreon: your-patreon-username # 您的 Patreon 用户名
+# open_collective: your-opencollective-project-name # 您的 Open Collective 项目名称
+# ko_fi: your-ko-fi-username # 您的 Ko-fi 用户名
+# tidelift: # Tidelift 支持
+#   - package-name/platform
+#   - another-package/platform
+# community_bridge: your-community-bridge-project-name # 您的 Community Bridge 项目名称
+# liberapay: your-liberapay-username # 您的 Liberapay 用户名
+# issuehunt: your-issuehunt-username # 您的 IssueHunt 用户名
+# otechie: your-otechie-username # 您的 Otechie 用户名
+custom:
+  - 'https://t.me/desci0'
+  - 'tron: TQtBXCSTwLFHjBqTS4rNUp7ufiGx51BRey'
+  - 'sol: HjYhozVf9AQmfv7yv79xSNs6uaEU5oUk2USasYQfUYau'
+  - 'eth: 0xa396923a71ee7D9480b346a17dDeEb2c0C287BBC'
+  - 'bsc: 0xa396923a71ee7D9480b346a17dDeEb2c0C287BBC'
+  - 'btc: bc1plslluj3zq3snpnnczplu7ywf37h89dyudqua04pz4txwh8z5z5vsre7nlm'
+  - 'sui: 0xb720c98a48c77f2d49d375932b2867e793029e6337f1562522640e4f84203d2e'
+  - 'telegram: desci0'
+  - 'x(twitter): https://x.com/123olp'
+