mAi: #41 - Add template skeleton with labels, CLAUDE.md, .gitignore, issue templates

Standard label set: p1-p3, status:*, type:* (no skill labels)
CLAUDE.md skeleton with placeholder sections
.gitignore covering mai, Python, Go, Node, OS files
Issue templates for features, bugs, and research

.gitea/issue_template/bug.yaml

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+name: Bug Report
+about: Report something that isn't working
+title: ""
+labels:
+  - "type:bug"
+body:
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: Describe the bug.
+    validations:
+      required: true
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+      description: What should have happened instead?
+  - type: textarea
+    id: reproduce
+    attributes:
+      label: Steps to reproduce
+      description: How can the bug be triggered?

.gitea/issue_template/feature.yaml

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+name: Feature Request
+about: Propose a new feature or enhancement
+title: ""
+labels:
+  - "type:feature"
+body:
+  - type: textarea
+    id: goal
+    attributes:
+      label: Goal
+      description: What should this feature accomplish?
+    validations:
+      required: true
+  - type: textarea
+    id: details
+    attributes:
+      label: Details
+      description: Any specifics, constraints, or context.

.gitea/issue_template/research.yaml

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+name: Research
+about: Investigation or analysis task
+title: ""
+labels:
+  - "type:research"
+body:
+  - type: textarea
+    id: question
+    attributes:
+      label: Research question
+      description: What needs to be investigated?
+    validations:
+      required: true
+  - type: textarea
+    id: context
+    attributes:
+      label: Context
+      description: Background, constraints, or related resources.