Make platform optional, remove tryout flow, and stabilize tests

[jimmieme]

Summary

• Remove tryout activation flow from backend APIs and the web client.
• Make platform integration optional (default disabled) and guard platform-only features.
• Fix bind-init GET handling and init response fields; stabilize network test behavior.
• Regenerate Swagger docs and add bilingual documentation.
• Stabilize unit tests and build compatibility across environments.

Key Changes

• Deleted tryout endpoints, DTOs, handlers, and related status field.
• Web client now routes directly to the QR code page (no activation step).
• Introduced PlatformEnabled (default false) to skip platform-dependent actions.
• Added bilingual docs: Project Overview + Platform Dependency Analysis.
• Rebuilt res/static_html.zip with updated frontend assets.
• Fixed bind-init GET handling to use query params (no LAN wrapper decode).
• Corrected generation field assignment and TestNetwork result propagation; added deterministic hooks.
• Added unit tests for bind-init handler/service and wifi list sorting/dedup.
• Regenerated swagger and resolved spec compatibility issues.
• Made environment-dependent tests skip with TODOs for future mocking.

Testing

• go test ./... (passed)
• go build ./... (passed)