feat: add in-memory job store

tests/test_store.py

@@ -0,0 +1,56 @@
+import pytest
+
+from app.models import Job, JobStatus
+from app.store import JobStore
+
+
+def test_add_and_get_job():
+    store = JobStore()
+    job = Job(command="-i input.mp4 output.mp4")
+
+    store.add(job)
+    retrieved = store.get(job.id)
+
+    assert retrieved is not None
+    assert retrieved.id == job.id
+    assert retrieved.command == job.command
+
+
+def test_get_nonexistent_job():
+    store = JobStore()
+
+    result = store.get("nonexistent")
+
+    assert result is None
+
+
+def test_list_all_jobs():
+    store = JobStore()
+    job1 = Job(command="-i a.mp4 b.mp4")
+    job2 = Job(command="-i c.mp4 d.mp4")
+
+    store.add(job1)
+    store.add(job2)
+    jobs = store.list_all()
+
+    assert len(jobs) == 2
+    assert job1 in jobs
+    assert job2 in jobs
+
+
+def test_list_jobs_by_status():
+    store = JobStore()
+    job1 = Job(command="-i a.mp4 b.mp4")
+    job2 = Job(command="-i c.mp4 d.mp4")
+    job2.status = JobStatus.RUNNING
+
+    store.add(job1)
+    store.add(job2)
+
+    queued = store.list_by_status(JobStatus.QUEUED)
+    running = store.list_by_status(JobStatus.RUNNING)
+
+    assert len(queued) == 1
+    assert len(running) == 1
+    assert queued[0].id == job1.id
+    assert running[0].id == job2.id