docs: add comprehensive configuration management documentation

Add complete documentation for the configuration system including:
- Architecture design with Mermaid diagrams (5 diagrams)
- Detailed explanation of all 6 configuration modules
- Complete environment variable reference table
- Configuration loading and validation flow
- Usage examples and migration guide
- Troubleshooting section

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
Misaka
2026-02-09 23:34:34 +08:00
parent b88ce96194
commit 6ec7484036

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docs/CONFIGURATION.md Normal file

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