## OUTPUT
Complete the scheduling algorithm defined in the instructions above, then run the pre-output validation checklist. Only after all checks pass, output the CSV.

Output ONLY the CSV between the markers below. Do NOT include any reasoning, working, justification, or commentary — only the CSV block.

---CSV_START---
(CSV rows here, one per line, no header row)
---CSV_END---

Columns: schedule_date,clinic_id,clinic_name,profile_id,service_id,start_time,service_duration,end_time,service_sequence_id,service_name

Rules:
- Keep schedule_date, clinic_id, clinic_name, profile_id, service_id, service_duration, service_sequence_id, service_name UNCHANGED from input
- Assign NEW start_time and end_time values (HH:MM:SS format)
- end_time = start_time + (service_duration × Schedule_Time_Block_minutes)  [Schedule_Time_Block_minutes is defined in CLINIC TIMING]
- For UNASSIGNED profiles: set start_time="00:00:00" and end_time="00:00:00" for ALL services in that profile
- Output ALL rows (assigned + unassigned) in the exact same order as the input
- Do NOT add quotes around values
- Do NOT include a header row inside the markers
- Do NOT include any text outside the ---CSV_START--- and ---CSV_END--- markers