Update issue template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,38 +1,92 @@
 ---
 name: Bug report
-about: Create a report to help us improve
-title: ''
-labels: ''
+about: Report a reproducible bug in Kiichain
+title: "[BUG] <short description>"
+labels: bug
 assignees: ''
+---
+
+## IMPORTANT – READ BEFORE SUBMITTING
+
+**AI-GENERATED CONTENT IS NOT ACCEPTED**
+
+Any report that is **generated by AI tools**, **without direct validation and testing**, will be **CLOSED**.
+
+Bug reports must be:
+- Based on **direct testing**
+- **Fully understood** by the reporter
+- **Reproducible** by the Kiichain team
+
+Low-effort, speculative, or generic reports will be closed.
 
 ---
 
-**Describe the bug**
-A clear and concise description of what the bug is.
+## Bug Description
+
+Provide a **clear and precise description** of the bug.
+
+- What is broken?
+- Which module or component is affected?
+- Why is this a bug (not expected behavior)?
+
+---
+
+## Steps to Reproduce
+
+Provide **deterministic steps** to reproduce the issue.
+
+Example:
+1. Start a node with config `X`
+2. Submit transaction `Y`
+3. Observe failure at block `Z`
+
+---
 
-**To Reproduce**
-Steps to reproduce the behavior:
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
+## Expected Behavior
 
-**Expected behavior**
-A clear and concise description of what you expected to happen.
+Describe **what should happen instead**, according to:
+- Protocol logic
+- Documentation
+- Code intent
 
-**Screenshots**
-If applicable, add screenshots to help explain your problem.
+---
+
+## Actual Behavior
+
+Describe **what happens**, including:
+- Errors
+- Logs
+- Panics
+- Invalid state changes
+
+---
+
+## Environment
+
+**Required information:**
+
+- Kiichain version / commit:
+- Network (local / testnet / mainnet) (if relevant):
+- OS (if relevant):
+- Node configuration (if relevant):
+
+---
+
+## Impact Assessment
+
+Explain the **impact of this bug**:
+- Consensus failure
+- Fund loss
+- Security risk
+- Incorrect behavior
+- Performance degradation
+
+---
 
-**Desktop (please complete the following information):**
- - OS: [e.g. iOS]
- - Browser [e.g. chrome, safari]
- - Version [e.g. 22]
+## Reporter Declaration
 
-**Smartphone (please complete the following information):**
- - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
- - Browser [e.g. stock browser, safari]
- - Version [e.g. 22]
+By submitting this issue, you confirm that:
 
-**Additional context**
-Add any other context about the problem here.
+- [ ] This report is **NOT generated by AI**
+- [ ] I personally tested and verified this issue
+- [ ] I understand that false or low-effort reports are disqualified from rewards