feat: Add toggle option in refine dialog to disable cleaning

[baderdean]

Description

Currently, when users run a mining operation in Leadminer, the backend automatically triggers cleaning workers that perform:

• Email verification
• Disposable email detection

Users should have the option to disable this cleaning step via a toggle in the refine dialog.

Note: The SQL refine_persons function (which copies from persons to refinedpersons) should keep its cleaning logic (tag filtering, name aggregation). This issue is about the worker-based cleaning (email verification & disposable detection), not the SQL refine function.

Requirements

1. Frontend: Add a toggle option in the refine dialog to disable cleaning

   • Default state: cleaning enabled (true)
   • Toggle label: "Disable cleaning" or similar
   • No persistency needed (just a session toggle)
   • When disabled, the mining process should skip email verification & disposable detection

2. Backend: Modify the mining flow to accept a parameter to skip cleaning

   • Pass the toggle value to the mining controller/worker
   • When toggled OFF, skip the cleaning worker tasks

Implementation Notes

• The refine SQL function (private.refine_persons) should NOT be modified - it already handles cleaning correctly
• The toggle is for the worker-based cleaning (email verification, disposable detection)
• No persistency required - it's just an on/off toggle for the current session

Files to Modify

1. frontend/src/components/mining/table/MiningTable.vue - Add toggle in UI where refine dialog appears
2. frontend/src/stores/leadminer.ts - Pass the toggle value to mining/cleaning
3. backend/src/controllers/mining.controller.ts - Accept parameter to control cleaning
4. Any worker-related files that trigger cleaning based on mining parameters

Acceptance Criteria

• Toggle appears in the refine dialog/UI
• Toggle is enabled by default (cleaning ON)
• When toggle is OFF, mining skips email verification & disposable detection
• No persistency - just a session toggle