chore: add issue template and pr template

.github/ISSUE_TEMPLATE/bug_report.yaml

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+################################################################################
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+# limitations under the License.
+################################################################################
+
+# Adapted from Apache Paimon
+# https://github.com/apache/paimon/blob/master/.github/ISSUE_TEMPLATE/bug-report.yml
+
+name: Bug report
+description: Problems with the software
+title: "[Bug] "
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you very much for your feedback!
+  - type: checkboxes
+    attributes:
+      label: Search before asking
+      description: >
+        Please search [issues](https://github.com/alibaba/paimon-cpp/issues) to check if your issue has already been reported.
+      options:
+        - label: >
+            I searched in the [issues](https://github.com/alibaba/paimon-cpp/issues) and found nothing similar.
+          required: true
+  - type: textarea
+    attributes:
+      label: Paimon-cpp version
+      description: >
+        Please provide the version of Paimon-cpp you are using. If you are using the master branch, please provide the commit id.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Minimal reproduce step
+      description: Please try to give reproducing steps to facilitate quick location of the problem.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What doesn't meet your expectations?
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Anything else?
+  - type: checkboxes
+    attributes:
+      label: Are you willing to submit a PR?
+      description: >
+        We look forward to the community of developers or users helping solve Paimon-cpp problems together. If you are willing to submit a PR to fix this problem, please check the box.
+      options:
+        - label: I'm willing to submit a PR!
+  - type: markdown
+    attributes:
+      value: "Thanks for completing our form!"

.github/ISSUE_TEMPLATE/config.yaml

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+# Copyright 2025-present Alibaba Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature.yaml

@@ -0,0 +1,62 @@
+################################################################################
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+# limitations under the License.
+################################################################################
+
+# Adapted from Apache Paimon
+# https://github.com/apache/paimon/blob/master/.github/ISSUE_TEMPLATE/feature.yml
+
+name: Feature
+description: Add new feature, improve code, and more
+title: "[Feature] "
+labels: [ "enhancement" ]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you very much for your feature proposal!
+  - type: checkboxes
+    attributes:
+      label: Search before asking
+      description: >
+        Please search [issues](https://github.com/alibaba/paimon-cpp/issues) to check if your issue has already been reported.
+      options:
+        - label: >
+            I searched in the [issues](https://github.com/alibaba/paimon-cpp/issues) and found nothing similar.
+          required: true
+  - type: textarea
+    attributes:
+      label: Motivation
+      description: Describe the motivations for this feature, like how it fixes the problem you meet.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Solution
+      description: Describe the proposed solution and add related materials like links if any.
+  - type: textarea
+    attributes:
+      label: Anything else?
+  - type: checkboxes
+    attributes:
+      label: Are you willing to submit a PR?
+      description: >
+        We look forward to the community of developers or users helping develop Paimon-cpp features together. If you are willing to submit a PR to implement the feature, please check the box.
+      options:
+        - label: I'm willing to submit a PR!
+  - type: markdown
+    attributes:
+      value: "Thanks for completing our form!"

.github/PULL_REQUEST_TEMPLATE.md

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+<!-- Please specify the module before the PR name: feat: ... or fix: ... -->
+
+### Purpose
+
+<!-- Linking this pull request to the issue -->
+Linked issue: close #xxx
+
+<!-- What is the purpose of the change -->
+
+### Tests
+
+<!-- List UT and IT cases to verify this change -->
+
+### API and Format
+
+<!-- Does this change affect API in include dir or storage format or protocol -->
+
+### Documentation
+
+<!-- Does this change introduce a new feature -->