feat: add websocket-based application log tools

[Azilone]

Summary

• add application-readContainerLogs (websocket snapshot from /docker-container-logs)
• add application-readDeploymentLogs (websocket snapshot from /listen-deployment)
• add shared websocket collector utility with timeout/truncation safeguards
• harden stream handling (single-settle, handshake timeout, optional auth header)
• accept numeric tail input for better client compatibility
• update docs (README.md, TOOLS.md) and register tools

Why

Dokploy exposes logs in the UI via websocket, but MCP only exposed deployment metadata (logPath).
This adds a clean, read-only way to fetch real log snapshots through MCP.

Validation

• npm run type-check ✅
• npm run lint ✅
• npm run build ✅
• manual call tests against a real Dokploy instance:
  • application-readDeploymentLogs ✅
  • application-readContainerLogs ✅

Notes

• tools are read-only and bounded by timeoutMs + maxChars to keep responses stable
• defaults remain conservative (timeoutMs=5000, maxChars=30000)

[Azilone]

Closing for now per latest validation feedback; will revisit with a safer approach.

[Azilone]

Quick recap of the changes since the previous version (before the PR was closed/reopened):

✅ Added/Adjusted

• Added 2 websocket log tools:

• application-readContainerLogs

• application-readDeploymentLogs

• Added a common utility collectWebSocketLogs (handles timeout + maxChars + bounded snapshots).

• Fixed TypeScript compatibility for the streamable transport (http-server.ts).

🔧 Hardening (Post-Implementation)

• tail now accepts string or number (improves client compatibility).
• Reinforced websocket robustness:
• Ensured unique finalization (prevents double resolve/reject).
• Added handshakeTimeout.
• Auth header is now only added if present.

🧪 Revalidation

• npm run type-check ✅
• npm run lint ✅
• npm run build ✅
• Manual tests on a live Dokploy instance:
• Deployment logs reading ✅
• Container logs reading ✅

If you'd like, I can also add targeted unit tests for collectWebSocketLogs (covering timeout, truncation, and close/error paths) within this PR.