feat(daq): add QuestDB storage backend (ILP ingest + PGWire query).

[CuAuPro]

📌 Description

This PR adds QuestDB support as a DAQ storage backend.

• What problem does this solve?

  • FUXA had no QuestDB storage adapter.
  • QuestDB-specific configuration in the app settings was missing/unclear.
  • UI labels for QuestDB sender/query connections were not explicit.

• What was changed?

  • Added server/runtime/storage/questdb/index.js backend.
  • Wired questDB into server/runtime/storage/daqstorage.js.
  • Implemented QuestDB dual-path access:
    • Ingestion via ILP (@questdb/nodejs-client)
    • Querying via PGWire (pg Pool)
  • Added typed value handling in QuestDB storage:
    • number_value for numeric/bool(0/1)
    • string_value for string values
  • Added configurable QuestDB table name (tableName, default meters).
  • Extended frontend DAQ settings model for QuestDB fields:
    • host, tableName, configurationString
  • Updated app settings UI:
    • Added QuestDB-specific configuration section
    • Added separate labels for query vs ingestion connection
  • Added/updated i18n keys in all locale files:
    • dlg.app-settings-daqstore-configurl
    • dlg.app-settings-daqstore-queryconn
    • dlg.app-settings-daqstore-ingestconn

• Why is this needed?

  • Enables first-class QuestDB usage in FUXA.
  • Aligns with QuestDB protocol usage (ILP for writes, PGWire for reads).
  • Makes DAQ configuration clearer and safer for users.

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🧪 Type of Change

• Bug fix
• New feature
• Refactoring
• Documentation
• Other

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🚫 Build Artifacts Check

Please confirm:

• I did NOT commit /client/dist
• I did NOT commit generated Angular build output
• Only source files are included

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🔍 Checklist

• Code follows project coding standards
• I tested my changes locally
• Documentation updated if required
• Issue opened (for major changes)

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📚 Documentation Checklist (if applicable)

• The documentation builds locally with mkdocs serve
• All links were tested
• Images use relative paths (e.g. images/example.png)
• No references to the old GitHub Wiki
• Navigation updated in mkdocs.yml (if required)

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📝 Additional Notes

• questDB type key remains lowercase for compatibility with existing settings flow.
• Existing/legacy QuestDB value handling is normalized in runtime where needed.
• No generated frontend build artifacts were intentionally included.