Add contribution templates and --version CLI flag (#36)

* feat(cli): add --version / -V flag

Uses importlib.metadata to read the version from the installed package.

* chore: improve bug report and feature request issue templates

- Bug report: replace web-app steps with CLI-oriented examples, add
  error output section, add Python version and LLM provider fields
- Feature request: add note directing niche features to EvoSkills,
  set default label

* chore: add documentation issue template and issue chooser config

- Add documentation template for reporting missing or unclear docs
- Add config.yml to disable blank issues and link to EvoSkills and
  Discord as contact options

* chore: add PR template and improve CONTRIBUTING.md

- Add PR template with type-of-change checkboxes, issue linking for
  new features, and CI checklist
- CONTRIBUTING.md: add development setup, PR workflow, and code style
  sections; fix wording; make Discord link clickable

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,8 +1,8 @@
 ---
 name: Bug report
-about: Create a report to help us improve
+about: Report a bug to help us improve EvoScientist
 title: ''
-labels: ''
+labels: bug
 assignees: ''
 type: Bug
 
@@ -13,21 +13,26 @@ A clear and concise description of what the bug is.
 
 **To Reproduce**
 Steps to reproduce the behavior:
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
+1. Run `EvoSci ...`
+2. Provide input '...'
+3. See error
 
 **Expected behavior**
 A clear and concise description of what you expected to happen.
 
-**Screenshots**
-If applicable, add screenshots to help explain your problem.
+**Error output / logs**
+If applicable, paste the relevant terminal output or traceback.
+
+```
+<paste here>
+```
 
 **System information**
- - OS: [e.g. Windows, MacOS, Linux]
- - Terminal [e.g. iTerm2, Alacritty, Windows Terminal]
- - EvoScientist Version [e.g. 0.0.1]
+ - OS: [e.g. Ubuntu 22.04, macOS 14.3, Windows 11]
+ - Python version: [e.g. 3.11.8]
+ - Terminal: [e.g. iTerm2, Alacritty, Windows Terminal]
+ - EvoScientist version: [e.g. 0.0.2 — run `EvoSci --version`]
+ - LLM provider: [e.g. Anthropic, OpenAI, Ollama]
 
 **Additional context**
 Add any other context about the problem here.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: EvoSkills — niche features & custom workflows
+    url: https://github.com/EvoScientist/EvoSkills
+    about: Want to add a feature that serves a specific use case rather than all users? Contribute it as an EvoSkill instead.
+  - name: Community Discord
+    url: https://discord.gg/AZ9ZMXkunY
+    about: Ask questions, get help, and chat with the community.

.github/ISSUE_TEMPLATE/documentation.md

@@ -0,0 +1,18 @@
+---
+name: Documentation
+about: Report missing, incorrect, or unclear documentation
+title: ''
+labels: documentation
+assignees: ''
+type: Documentation
+
+---
+
+**What documentation is affected?**
+Describe which part of the project needs better docs.
+
+**What is wrong or missing?**
+Describe the issue — is something inaccurate, outdated, hard to follow, or missing entirely?
+
+**Suggested improvement**
+If you have a specific fix or addition in mind, describe it here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,15 +1,18 @@
 ---
 name: Feature request
-about: Suggest an idea for this project
+about: Suggest an idea for EvoScientist core functionality
 title: ''
-labels: ''
+labels: enhancement
 assignees: ''
 type: Feature
 
 ---
 
+> **Note:** We only accept feature requests for core functionality that benefits the majority of users.
+> If your idea is a niche workflow or personal utility, consider contributing it to [EvoSkills](https://github.com/EvoScientist/EvoSkills) instead.
+
 **Is your feature request related to a problem? Please describe.**
-A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+A clear and concise description of the problem. Ex. "I'm always frustrated when [...]"
 
 **Describe the solution you'd like**
 A clear and concise description of what you want to happen.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,21 @@
+## Description
+
+<!-- What does this PR do? Link the related issue (e.g. "Closes #123"). -->
+
+## Type of change
+
+<!-- Check the one that applies. -->
+
+- [ ] Bug fix
+- [ ] New feature — link issue: #<!-- issue number -->
+- [ ] Documentation / examples
+- [ ] Test improvement
+- [ ] Refactor (no behavior change)
+
+## Checklist
+
+- [ ] I have read the [Contributing Guidelines](../CONTRIBUTING.md)
+- [ ] This targets **core functionality** used by the majority of users (niche features belong in [EvoSkills](https://github.com/EvoScientist/EvoSkills))
+- [ ] I have added/updated tests where applicable
+- [ ] `uv run ruff check .` passes
+- [ ] `uv run pytest` passes