fix(prospecting): fix scan-jobs batch endpoints and add job tracking

- Reorder routes: batch endpoints before /{prospect_id} to fix FastAPI
  route matching (was parsing "batch" as prospect_id → 422)
- Add scan job tracking via stats_service.create_job/complete_job so
  the scan-jobs table gets populated after each batch run
- Add contact scrape batch endpoint (POST /contacts/batch) with
  get_pending_contact_scrape query
- Fix scan-jobs.js: explicit route map instead of naive replace
- Normalize domain_name on create/update (strip protocol, www, slash)
- Add domain_name to ProspectUpdate schema
- Add proposal for contact scraper enum + regex fixes

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/modules/prospecting/services/stats_service.py

@@ -4,11 +4,14 @@ Statistics service for the prospecting dashboard.
 """
 
 import logging
+from datetime import UTC, datetime
 
 from sqlalchemy import func
 from sqlalchemy.orm import Session
 
 from app.modules.prospecting.models import (
+    JobStatus,
+    JobType,
     Prospect,
     ProspectChannel,
     ProspectScanJob,
@@ -56,6 +59,25 @@ class StatsService:
             "common_issues": self._get_common_issues(db),
         }
 
+    def create_job(self, db: Session, job_type: JobType) -> ProspectScanJob:
+        """Create a scan job record for tracking."""
+        job = ProspectScanJob(
+            job_type=job_type,
+            status=JobStatus.RUNNING,
+            started_at=datetime.now(UTC),
+        )
+        db.add(job)
+        db.flush()
+        return job
+
+    def complete_job(self, job: ProspectScanJob, processed: int, failed: int = 0) -> None:
+        """Mark a scan job as completed."""
+        job.total_items = processed + failed
+        job.processed_items = processed
+        job.failed_items = failed
+        job.status = JobStatus.COMPLETED
+        job.completed_at = datetime.now(UTC)
+
     def get_scan_jobs(
         self,
         db: Session,