Update issue templates

Author: castengine

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+### Describe the bug
+A clear and concise description of what the bug is.
+
+### To Reproduce
+Steps to reproduce the behavior:
+1. Run the script: `python your_script.py`
+2. Use the input file `example.csv`
+3. Error appears on function `insert_csv_to_db`
+
+### Expected behavior
+What did you expect to happen?
+
+### Actual behavior
+What actually happened? Include traceback or error message if possible.
+
+### Environment:
+- OS: (e.g. Ubuntu 22.04 / Windows 10)
+- Python version: (e.g. 3.10)
+- insert-tools version: (e.g. 1.0.3)
+- Database: (e.g. PostgreSQL 15, SQLite 3.39)
+
+### Screenshots / Logs
+Paste relevant log output or attach screenshots if applicable.
+
+### Additional context
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/custom.md

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+---
+name: Custom issue template
+about: Describe this issue template's purpose here.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+### Your Question
+Please describe your question as clearly as possible.  
+For example: *"How does `insert_csv_to_db` handle NULL values?"*
+
+### What have you tried?
+Let us know what you've attempted already (if anything), such as checking the documentation or trying a workaround.
+
+### insert-tools version
+e.g. 1.0.3
+
+### Additional context
+Any other details that might help us answer your question. Logs, links, examples — everything helps!

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+### Is your feature request related to a problem? Please describe
+A clear and concise description of what the problem is.  
+For example: *"I'm always frustrated when I have to manually format large CSVs before inserting them..."*
+
+### Describe the solution you'd like
+A clear and concise description of what you want to happen.  
+What should this feature do? How would it improve your workflow?
+
+### Describe alternatives you've considered
+Any alternative solutions or features you’ve thought about.
+
+### Additional context
+Add any other context, examples, or mockups here.  
+Screenshots or pseudo-code are welcome if helpful.