added badges + github templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Configure client with '...'
+2. Perform '...'
+3. See error '...'
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Code Snippet (if applicable)**
+```rust
+// Paste a minimal code example showing the issue
+```
+
+**Logs & Traces**
+If applicable, run with `RUST_LOG=debug` or `RUST_LOG=trace` and paste the relevant log output here. Please sanitize any private keys or tokens before pasting!
+
+**Environment Details:**
+ - OS: [e.g. Linux Ubuntu 22.04]
+ - Rust Version: [e.g. 1.96.0]
+ - `proton-sdk-rs` Crate Version: [e.g. 0.1.2]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+**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 [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/pull_request_template.md

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+## Description
+
+Please include a summary of the change and the related issue. Please also include relevant motivation and context. List any dependencies that are required for this change.
+
+Fixes # (issue)
+
+## Type of Change
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Code style update / formatting / refactoring
+- [ ] Documentation update
+- [ ] CI/CD or build toolchain changes
+
+## Checklist
+
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my own code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] My changes generate no new warnings when compiling or running clippy
+- [ ] I have run local offline unit tests and verified they pass
+- [ ] If applicable, I have verified the changes with the live integration tests (`cargo test --test 'live_*' -- --ignored`)