[Feature Request]: Objective: When a user submits a document, only add the task to the queue instead of parsing immediately, to avoid blocking the UI.

[yeungtuzi]

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Is your feature request related to a problem?

User interaction quality degraded while parsing docs.

Describe the feature you'd like

1. Task Queue Management**
2. System Idle DetectionObjective: Monitor system load and service access frequency (e.g., Ragflow) to determine idle states.
3. Asynchronous Document Parsing Worker
4. Auto-Pause and Resume
5. Task Persistence (Optional)

Implementation Plan.md

Describe implementation you've considered

Please to the attachment file

Documentation, adoption, use case

User submits document → Task added to queue → UI responds immediately

|
v
System monitor thread periodically checks load:
   Yes → Idle state → Trigger worker → Process queue tasks
   No → Set pause flag → Worker pauses

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v
When load increases or Ragflow requests rise:
   Monitor detects → Set pause flag → Worker stops processing

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v
System becomes idle again → Monitor resets flag → Worker resumes processing remaining tasks
### Additional information

_No response_