chore: add issue templates

Author: jspanchu

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug Report
+description: Report a bug to help us improve trame-vtklocal
+labels: ["status: needs-triage", "type: bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+  - type: textarea
+    id: bug-description
+    attributes:
+      label: Description
+      description: A clear and concise description of what the bug is.
+      placeholder: I encountered an issue when...
+    validations:
+      required: true
+  - type: dropdown
+    id: origin
+    attributes:
+      label: Where does the issue originate?
+      description: Does this feel like a bug in this wrapper/example, or in the core upstream project?
+      options:
+        - "This project (trame-vtklocal)"
+        - "Upstream Project (trame)"
+        - "Upstream Project (vtk.wasm JS bindings)"
+        - "Upstream Project (VTK itself)"
+        - "Unsure / Need help triaging"
+    validations:
+      required: true
+  - type: input
+    id: version-info
+    attributes:
+      label: Version Information
+      description: Please provide the version of this project AND the upstream project version.
+      placeholder: trame-vtklocal - v1.2.3, VTK - v9.6.0
+    validations:
+      required: true
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: Steps to Reproduce
+      description: How can we make this happen again? If you're not sure, please provide as much detail as you can about what you were doing when the bug happened.
+      placeholder: |
+        1. Run this code snippet...
+        2. Click this button...
+        3. Observe this incorrect behavior instead of the expected behavior
+        4. See error
+    validations:
+      required: true
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant Log Output
+      description: Please copy and paste any relevant terminal or browser console output.
+      render: shell

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: "Feature Request"
+description: "Suggest an idea, a new example, or an improvement"
+labels: ["status: needs-triage", "type: enhancement"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Got a great idea? We'd love to hear it. Please check if a similar request already exists before opening a new one.
+  - type: textarea
+    id: feature-description
+    attributes:
+      label: "What is the feature or improvement?"
+      description: "A clear and concise description of what you want to happen."
+      placeholder: "I would like the ability to..."
+    validations:
+      required: true
+  - type: dropdown
+    id: request-type
+    attributes:
+      label: "Category"
+      description: "What part of the project does this affect?"
+      options:
+        - "New Example (Code snippets, demos, use-cases)"
+        - "Core Logic (Source code changes)"
+        - "Documentation / Tutorials"
+        - "Upstream Integration (support new VTK features)"
+    validations:
+      required: true
+  - type: textarea
+    id: use-case
+    attributes:
+      label: "The 'Why'"
+      description: "What problem does this solve? What is the use case?"
+      placeholder: "This would allow users to..."
+    validations:
+      required: true
+  - type: textarea
+    id: proposed-example
+    attributes:
+      label: "Proposed Example / Implementation"
+      description: "If this is a request for a new example, what should it demonstrate? If it's a code change, how should the API look?"
+      placeholder: "I'm imagining a demo that shows off..."
+  - type: checkboxes
+    id: upstream-check
+    attributes:
+      label: "Upstream Considerations"
+      options:
+        - label: "This requires a change in the upstream project first"
+        - label: "I am willing to contribute an example or PR for this"
+  - type: textarea
+    id: additional-context
+    attributes:
+      label: "Additional Context"
+      description: "Any other context, screenshots, or links to upstream discussions."
+      placeholder: "Add any other context or screenshots about the feature request here."