feat: standardise SP approval review tracking with issue template

.github/ISSUE_TEMPLATE/sp-approval-review.md

@@ -0,0 +1,96 @@
+---
+name: SP Approval Review
+about: Track a Storage Provider (SP) approval review and decision
+title: "[SP Approval Review] f0xxxx"
+labels: ["sp-approval-review"]
+assignees: []
+---
+
+## SP Approval Review
+
+### SP Details
+- **SP ID:**  
+- **SP Name (optional):**
+
+---
+
+### Review Trigger
+- **Time review started (UTC):**  
+- **Trigger condition:**  
+  <!-- e.g. Storage success <97%, Retrieval failures, Retention faults -->
+
+---
+
+### Metrics
+
+**Failing metric(s):**
+- 
+
+**Observed value(s):**
+- 
+
+**Threshold(s):**
+- 
+
+---
+
+### Investigation Window
+- **Investigation deadline (UTC):**  
+- **Within maintenance window?** Yes / No  
+
+---
+
+### Communication
+
+- **SP notified?** Yes / No  
+- **Channel used:**  
+  <!-- #pdp-endorsed-sp OR #fil-pdp-mainnet-launch -->
+
+- **SP response (if any):**
+  <!-- brief summary -->
+
+---
+
+### Diagnosis
+
+**Current assessment:**
+- [ ] SP-side issue  
+- [ ] Dealbot / tooling issue  
+- [ ] Network / external issue  
+- [ ] Unknown  
+
+**Notes:**
+<!-- What do we think is happening? -->
+
+---
+
+### Outcome
+
+- [ ] Recovered within investigation window  
+- [ ] Unapproved  
+
+- **Decision time (UTC):**
+
+---
+
+### Actions Taken
+
+- [ ] SP remained approved  
+- [ ] SP unapproved  
+- [ ] Follow-up issue created  
+- [ ] Escalated  
+
+---
+
+### Links & Evidence
+
+- Dashboard (spdash):  
+- Dealbot runs:  
+- Logs / errors:  
+- Related issues:  
+
+---
+
+### Notes
+
+<!-- Anything else useful for future reference -->