Prepare for public release on Gitea: simurgarray package names, community files, Gitea templates, pseudonymised P6 probe names

.gitea/ISSUE_TEMPLATE/feature_request.yaml

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+name: Feature request
+about: Suggest a new capability or a change in behaviour
+title: "[feature] "
+labels: []
+body:
+  - type: textarea
+    id: problem
+    attributes:
+      label: What are you trying to do?
+      description: The research task or workflow, and where SimurgArray gets in the way.
+    validations:
+      required: true
+  - type: textarea
+    id: proposal
+    attributes:
+      label: What would help?
+      description: Describe the behaviour you would like. Mention spec items (for example CLI-021) if you know them.
+    validations:
+      required: true
+  - type: textarea
+    id: validation
+    attributes:
+      label: How could it be validated?
+      description: A public dataset, a reference tool or a paper the result could be checked against.