Support target-free SOCKS5 port mappings with reference protection and UI workflows.
Include connection-stage diagnostics, SSH fingerprint confirmation, asset impact checks, listener traffic visibility, SQLite snapshots, account mapping improvements, and MySQL discovery fixes.
Update feature rationale and validation docs; Go checks, frontend build and 121 browser tests passed.
Replace active S3 sync with encrypted WebDAV synchronization and independent backups. Support explicit empty passwords and unauthenticated MongoDB, Redis, HTTP and HTTPS targets. Include migration, design and validation documentation.
Validation: build and go vet passed; Playwright 113 passed with 4 existing failures. Full Go run reproduced the existing cluster discovery test failure. Preserve unrelated SSH fingerprint changes outside this commit.
曾志威