chore: import upstream snapshot with attribution

.github/ISSUE_TEMPLATE/bug.yaml

@@ -0,0 +1,55 @@
+name: 🐛 MCP Python SDK Bug
+description: Report a bug or unexpected behavior in the MCP Python SDK
+labels: ["need confirmation"]
+
+body:
+  - type: markdown
+    attributes:
+      value: Thank you for contributing to the MCP Python SDK! ✊
+
+  - type: checkboxes
+    id: checks
+    attributes:
+      label: Initial Checks
+      description: Just making sure you're using the latest version of MCP Python SDK.
+      options:
+        - label: I confirm that I'm using the latest version of MCP Python SDK
+          required: true
+        - label: I confirm that I searched for my issue in https://github.com/modelcontextprotocol/python-sdk/issues before opening this issue
+          required: true
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: |
+        Please explain what you're seeing and what you would expect to see.
+
+        Please provide as much detail as possible to make understanding and solving your problem as quick as possible. 🙏
+    validations:
+      required: true
+
+  - type: textarea
+    id: example
+    attributes:
+      label: Example Code
+      description: >
+        If applicable, please add a self-contained,
+        [minimal, reproducible, example](https://stackoverflow.com/help/minimal-reproducible-example)
+        demonstrating the bug.
+
+      placeholder: |
+        from mcp.server.mcpserver import MCPServer
+
+        ...
+      render: Python
+
+  - type: textarea
+    id: version
+    attributes:
+      label: Python & MCP Python SDK
+      description: |
+        Which version of Python and MCP Python SDK are you using?
+      render: Text
+    validations:
+      required: true