feat: standardise SP approval review tracking with issue template

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

@@ -0,0 +1,122 @@
+---
+name: SP Approval Review
+about: Track an SP approval decision — new approval, breach review, or periodic check
+title: "[SP Approval] f0xxxx"
+labels: ["sp-approval-review"]
+assignees: []
+---
+
+## SP Approval Review
+
+### Review Type
+
+- [ ] **New approval** — SP is being approved for the first time
+- [ ] **Breach review** — approved SP has breached SLA thresholds
+- [ ] **Periodic check** — routine re-verification of an approved SP
+
+> Some sections below are only required for breach reviews. These are marked _(breach review only)_.
+
+---
+
+### SP Details
+- **SP ID:**  
+- **SP Name (optional):**
+
+---
+
+### Review Trigger
+- **Time review started (UTC):**  
+- **Trigger:**  
+  <!-- New approval: e.g. SP met sustained thresholds, requested approval -->
+  <!-- Breach review: e.g. Storage success <97%, Retrieval failures, Retention faults -->
+  <!-- Periodic check: e.g. Quarterly review, post-incident re-verification -->
+
+---
+
+### Metrics
+
+<!-- For new approvals: record observed performance against thresholds. -->
+<!-- For breach reviews: record the failing metric(s). -->
+
+**Metric(s):**
+- 
+
+**Observed value(s):**
+- 
+
+**Threshold(s):**
+
+| Metric | Threshold | Minimum Sample Size |
+|--------|-----------|---------------------|
+| [Data Storage Success Rate](#data-storage-success-rate) | ≥ 97% | 200 |
+| [Data Retention Fault Rate](#data-retention-fault-rate) | ≤ 0.2% | 500 |
+| [Retrieval Success Rate](#retrieval-success-rate) | ≥ 97% | 200 |
+
+---
+
+### Investigation Window _(breach review only)_
+- **Investigation deadline (UTC):**  
+- **Within maintenance window?** Yes / No  
+
+---
+
+### Communication
+
+- **SP notified / engaged?** Yes / No  
+- **Channel used:**  
+  <!-- #pdp-endorsed-sp OR #fil-pdp-mainnet-launch -->
+
+- **SP response (if any):**
+  <!-- Brief summary -->
+
+---
+
+### Diagnosis _(breach review only)_
+
+**Current assessment:**
+- [ ] SP-side issue  
+- [ ] Dealbot / tooling issue  
+- [ ] Network / external issue  
+- [ ] Unknown  
+
+**Notes:**
+<!-- What do we think is happening? -->
+
+---
+
+### Outcome
+
+- [ ] **Approved** — SP added to approved list _(new approval / periodic check)_
+- [ ] **Not approved** — SP did not meet requirements _(new approval)_
+- [ ] **Recovered** within investigation window _(breach review)_
+- [ ] **Unapproved** _(breach review)_
+
+- **Decision time (UTC):**
+- **Decision owner:**  
+  <!-- The approver responsible for this decision -->
+
+---
+
+### Actions Taken
+
+- [ ] SP newly approved  
+- [ ] SP remained approved  
+- [ ] SP unapproved  
+- [ ] Follow-up issue created  
+- [ ] Escalated  
+- [ ] Added to approved list / Notion record updated  
+
+---
+
+### Links & Evidence
+
+- Dashboard (spdash):  
+- Dealbot runs:  
+- Logs / errors:  
+- Related issues:  
+
+---
+
+### Notes
+
+<!-- Anything else useful for future reference -->