feat: add jobs CRUD API with manual execution

- Full CRUD for backup jobs
- Manual job trigger endpoint with background execution
- Schedule creation endpoint
- Tests for job creation, update, execution, and 404 cases

backend/app/routers/jobs.py

@@ -0,0 +1,98 @@
+from fastapi import APIRouter, Depends, HTTPException, BackgroundTasks
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+from typing import List
+from app.database import get_db
+from app.models import Job, Schedule
+from app.schemas import JobCreate, JobUpdate, Job as JobSchema, ScheduleCreate
+from backup.engine import BackupEngine
+
+router = APIRouter(prefix="/api/jobs", tags=["jobs"])
+
+@router.get("/", response_model=List[JobSchema])
+async def list_jobs(db: AsyncSession = Depends(get_db)):
+    result = await db.execute(select(Job))
+    jobs = result.scalars().all()
+    return jobs
+
+@router.post("/", response_model=JobSchema)
+async def create_job(job: JobCreate, db: AsyncSession = Depends(get_db)):
+    db_job = Job(**job.model_dump())
+    db.add(db_job)
+    await db.commit()
+    await db.refresh(db_job)
+    return db_job
+
+@router.get("/{job_id}", response_model=JobSchema)
+async def get_job(job_id: int, db: AsyncSession = Depends(get_db)):
+    result = await db.execute(select(Job).where(Job.id == job_id))
+    job = result.scalar_one_or_none()
+    if not job:
+        raise HTTPException(status_code=404, detail="Job not found")
+    return job
+
+@router.put("/{job_id}", response_model=JobSchema)
+async def update_job(
+    job_id: int,
+    job_update: JobUpdate,
+    db: AsyncSession = Depends(get_db)
+):
+    result = await db.execute(select(Job).where(Job.id == job_id))
+    job = result.scalar_one_or_none()
+    if not job:
+        raise HTTPException(status_code=404, detail="Job not found")
+    
+    update_data = job_update.model_dump(exclude_unset=True)
+    for field, value in update_data.items():
+        setattr(job, field, value)
+    
+    await db.commit()
+    await db.refresh(job)
+    return job
+
+@router.delete("/{job_id}")
+async def delete_job(job_id: int, db: AsyncSession = Depends(get_db)):
+    result = await db.execute(select(Job).where(Job.id == job_id))
+    job = result.scalar_one_or_none()
+    if not job:
+        raise HTTPException(status_code=404, detail="Job not found")
+    
+    await db.delete(job)
+    await db.commit()
+    return {"message": "Job deleted"}
+
+@router.post("/{job_id}/run")
+async def run_job(
+    job_id: int,
+    background_tasks: BackgroundTasks,
+    db: AsyncSession = Depends(get_db)
+):
+    result = await db.execute(select(Job).where(Job.id == job_id))
+    job = result.scalar_one_or_none()
+    if not job:
+        raise HTTPException(status_code=404, detail="Job not found")
+    
+    # Run in background
+    async def execute():
+        engine = BackupEngine(db)
+        await engine.execute_job(job_id, triggered_by="manual")
+    
+    background_tasks.add_task(execute)
+    return {"message": "Job execution started"}
+
+@router.post("/{job_id}/schedule", response_model=JobSchema)
+async def create_schedule(
+    job_id: int,
+    schedule: ScheduleCreate,
+    db: AsyncSession = Depends(get_db)
+):
+    result = await db.execute(select(Job).where(Job.id == job_id))
+    job = result.scalar_one_or_none()
+    if not job:
+        raise HTTPException(status_code=404, detail="Job not found")
+    
+    db_schedule = Schedule(**schedule.model_dump())
+    db.add(db_schedule)
+    await db.commit()
+    await db.refresh(job)
+    return job