Add issue templates (#975)

Author: Kludex

.github/ISSUE_TEMPLATE/bug.yaml

@@ -0,0 +1,53 @@
+name: 🐛 Pydantic AI Bug
+description: Report a bug or unexpected behavior in Pydantic AI
+labels: ["need confirmation"]
+
+body:
+  - type: markdown
+    attributes:
+      value: Thank you for contributing to Pydantic AI! ✊
+
+  - type: checkboxes
+    id: checks
+    attributes:
+      label: Initial Checks
+      description: Just making sure you're using the latest version of Pydantic AI.
+      options:
+        - label: I confirm that I'm using the latest version of Pydantic AI
+          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 pydantic_ai import Agent
+
+        ...
+      render: Python
+
+  - type: textarea
+    id: version
+    attributes:
+      label: Python, Pydantic AI & LLM client version
+      description: |
+        Which version of Python, Pydantic and LLM client are you using?
+      render: Text
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/config.yaml

@@ -0,0 +1,5 @@
+blank_issues_enabled: true
+contact_links:
+  - name: 💬 Join Slack
+    url: "https://logfire.pydantic.dev/docs/help/#slack"
+    about: Join the Logfire Slack to ask questions, get help and chat about Pydantic AI

.github/ISSUE_TEMPLATE/feature-request.yaml

@@ -0,0 +1,22 @@
+name: 🚀 Pydantic AI Feature Request
+description: "Suggest a new feature for Pydantic AI"
+labels: ["feature request"]
+
+body:
+  - type: markdown
+    attributes:
+      value: Thank you for contributing to Pydantic AI! ✊
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: |
+        Please give as much detail as possible about the feature you would like to suggest. 🙏
+
+        You might like to add:
+        * A demo of how code might look when using the feature
+        * Your use case(s) for the feature
+        * Reference to other projects that have a similar feature
+    validations:
+      required: true