docs: revise REQ-010/163 for archive upload, add REQ-178/179

docs/design.md

@@ -155,7 +155,7 @@ GET    /api/health                              REQ-073
 
 GET    /api/projects                            REQ-001
 POST   /api/projects                            REQ-001,002,004,005
-GET    /api/projects/{id}                       # includes label_type_locked: bool (REQ-002)
+GET    /api/projects/{id}                       # includes label_type_locked: bool (REQ-002), video_root_linux/video_root_windows (REQ-179)
 DELETE /api/projects/{id}
 PATCH  /api/projects/{id}                       # class prompts, val_every (REQ-005)
 POST   /api/projects/{id}/classes               # add new class {name, prompt} (REQ-008)
@@ -166,6 +166,8 @@ GET    /api/projects/{id}/dataset/download      # zip (REQ-054)
 
 GET    /api/projects/{id}/library               # list of dates (REQ-011)
 GET    /api/projects/{id}/library/{date}        # videos + duration/resolution (REQ-012)
+POST   /api/projects/{id}/library/dates?date=   # create YYYY-MM-DD folder, 409 if it exists (REQ-178)
+POST   /api/projects/{id}/library/upload?date=  # multipart `file`, streamed to disk (REQ-178)
 GET    /api/projects/{id}/video?rel=…           # Range streaming (REQ-013)
 
 POST   /api/projects/{id}/batches               # {rel, start_sec, end_sec, fps} → extract job