ci: github issue template

Author: ovx

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug Report
+about: Create a report to help us improve ALTCHA.
+title: "[BUG] "
+labels: bug
+assignees: ''
+
+---
+
+## 🛑 Important: Bug Reports Only
+Please use this template **only for reporting bugs**.
+
+---
+
+### Description
+A clear and concise description of the bug.
+
+### Environment Details
+* **Library Version:** (e.g., v2.0.0)
+* **Runtime Version:** (e.g., Node.js v20, Go 1.22, Python 3.11)
+* **Framework (if applicable):** (e.g., Express, Gin, FastAPI)
+* **OS:** (e.g., Linux, Docker/Alpine, Windows)
+
+### Reproduction Code
+Please provide a minimal, self-contained code snippet that reproduces the issue. 
+> **Warning:** Do not include your `secret` or private keys here.
+
+```text
+(Paste your implementation here)
+```
+
+### Error Logs & Stack Trace
+Please paste the full error output or stack trace from your server logs:
+```text
+(Paste logs here)
+```
+
+### Expected Behavior
+What was the expected result of the validation or library call?
+
+### Additional Context
+Is this happening with specific algorithms (e.g., Argon2, SHA-256) or under specific load conditions?
+
+---
+**Note:** Issues without environment details or reproduction code may be closed.

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: 📖 Documentation
+    url: https://altcha.org/docs/v2
+    about: Check the official docs before opening an issue.