feat(alloydb-omni): Initial code for alloydb omni extension

.github/CODEOWNERS

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+# This file controls who is tagged for review for any given pull request
+#
+# For syntax help see
+# <https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax>
+
+* @gemini-cli-extensions/senseai-eco @gemini-cli-extensions/alloydb-maintainers

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+
+---
+
+## Expected Behavior
+
+
+## Actual Behavior
+
+
+## Steps to Reproduce the Problem
+
+1.
+1.
+1.
+
+## Specifications
+
+- Version:
+- Platform:

.github/ISSUE_TEMPLATE/bug_report.yml

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+# Copyright 2025 Google LLC
+#
+# 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
+#
+#     https://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.
+
+name: 🐞 Bug Report
+description: File a report for unexpected or undesired behavior.
+title: "<brief summary of what bug or error was observed>"
+labels: ["type: bug"]
+type: "bug"
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for helping us improve! 🙏 Please answer these questions and provide as much information as possible about your problem.
+
+  - id: preamble
+    type: checkboxes
+    attributes:
+      label: Pre-reqs
+      description: |
+        Please run through the following list and make sure you've tried the usual "quick fixes":
+        - Search the [current open issues](https://github.com/gemini-cli-extensions/alloydb/issues)
+        - Update to the latest version of the extension and [Gemini CLI](https://github.com/google-gemini/gemini-cli?tab=readme-ov-file#stable)
+      options: 
+        - label: "I've searched the current open issues"
+          required: true
+        - label: "I've updated to the latest versions"
+
+  - type: input
+    id: ex_version
+    attributes:
+      label: Extension Version
+      description: |
+        What version of the extension are you using (`gemini extensions list` or `/extensions list`)?
+      placeholder: ex. version 0.1.0 
+    validations:
+      required: true
+
+  - type: input
+    id: version
+    attributes:
+      label: Gemini CLI Version
+      description: |
+        What version of the Gemini CLI are you using (`gemini --version`)?
+      placeholder: ex. version 0.6.0 
+    validations:
+      required: true
+
+  - type: input
+    id: environment
+    attributes:
+      label: Environment
+      description: "Let us know what OS type and version in which you are seeing the bug!"
+      placeholder: output of `uname -a`
+    validations:
+      required: true
+
+  - id: current-behavior
+    type: textarea
+    attributes:
+      label: Current Behavior
+      description: "Please enter a detailed description of the behavior you encountered instead."
+    validations:
+      required: true
+
+  - id: expected-behavior
+    type: textarea
+    attributes:
+      label: Expected Behavior
+      description: |
+        Please enter a detailed description of the behavior you expected, and any information about what behavior you 
+        noticed and why it is defective or unintentional.
+    validations:
+      required: true
+
+  - type: textarea
+    id: repro
+    attributes:
+      label: Steps to reproduce?
+      description: |
+        How can we reproduce this bug? Please walk us through it step by step,
+        with as much relevant detail as possible. A 'minimal' reproduction is
+        preferred, which means removing as much of the examples as possible so
+        only the minimum required to run and reproduce the bug is left. 
+      value: |
+        1. ?
+        2. ?
+        3. ?
+        ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: additional-details
+    attributes:
+      label: Additional Details
+      description: |
+        Any other information you want us to know?

.github/ISSUE_TEMPLATE/config.yml

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+# Copyright 2025 Google LLC
+#
+# 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
+contact_links:
+  - name: Google Cloud Support
+    url: https://cloud.google.com/support/
+    about: If you have a support contract with Google, please both open an issue here and open Google Cloud Support portal with a link to the issue.

.github/ISSUE_TEMPLATE/feature_request.yml

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+# Copyright 2025 Google LLC
+#
+# 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
+#
+#     https://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.
+
+name: ✨ Feature Request
+description: Suggest an idea for new or improved behavior.
+title: "<brief summary of the proposed feature>"
+labels: ["type: feature request"]
+type: feature
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for helping us improve! 🙏 Please answer these questions and provide as much information as possible about your feature request. 
+
+  - id: preamble
+    type: checkboxes
+    attributes:
+      label: Pre-reqs
+      description: |
+        Please run through the following list and make sure you've tried the usual "quick fixes":
+      options:
+        - label: "Search the [current open issues](https://github.com/gemini-cli-extensions/alloydb/issues)"
+          required: true
+
+  - type: textarea
+    id: use-case
+    attributes:
+      label: What are you trying to do that currently feels hard or impossible? 
+      description: "A clear and concise description of what the end goal for the feature should be -- avoid generalizing and try to provide a specific use-case."
+    validations:
+      required: true
+
+  - type: textarea
+    id: suggested-solution
+    attributes:
+      label: Suggested Solution(s)
+      description: "If you have a suggestion for how this use-case can be solved, please feel free to include it."
+
+  - type: textarea
+    id: additional-details
+    attributes:
+      label: Additional Details
+      description: "Any additional information we should know? Please reference it here (issues, PRs, descriptions, or screenshots)"

.github/ISSUE_TEMPLATE/question.yml

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+# Copyright 2025 Google LLC
+#
+# 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
+#
+#     https://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.
+
+name: 💬 Question
+description: Questions on how something works or the best way to do something?
+title: "<brief summary of the question>"
+labels: ["type: question"]
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for helping us improve! 🙏 Please provide as much information as possible about your question. 
+
+  - id: preamble
+    type: checkboxes
+    attributes:
+      label: Prerequisites
+      description: |
+        Please run through the following list and make sure you've tried the usual "quick fixes":
+      options:
+        - label: "Search the [issues](https://github.com/gemini-cli-extensions/alloydb/issues)"
+          required: true
+
+  - type: textarea
+    id: question
+    attributes:
+      label: Question
+      description: "What's your question? Please provide as much relevant information as possible to reduce turnaround time. Include information like what environment, language, or framework you are using."
+    validations:
+      required: true
+
+  - type: textarea
+    id: code
+    attributes:
+      label: Code
+      description: "Please paste any useful application code that might be relevant to your question. (if your code is in a public repo, feel free to paste a link!)"
+
+  - type: textarea
+    id: additional-details
+    attributes:
+      label: Additional Details
+      description: "Any other information you want us to know that might be helpful in answering your question? (link issues, PRs, descriptions, or screenshots)."

.github/PULL_REQUEST_TEMPLATE.md

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+Fixes #<issue_number_goes_here>
+
+> It's a good idea to open an issue first for discussion.
+
+- [ ] Tests pass
+- [ ] Appropriate changes to documentation are included in the PR

.github/labels.yaml

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+# Copyright 2025 Google LLC
+#
+# 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.
+
+- name: duplicate
+  color: ededed
+  description: ""
+
+- name: 'type: bug'
+  color: db4437
+  description: Error or flaw in code with unintended results or allowing sub-optimal
+    usage patterns.
+- name: 'type: cleanup'
+  color: c5def5
+  description: An internal cleanup or hygiene concern.
+- name: 'type: docs'
+  color: 0000A0
+  description: Improvement to the documentation for an API.
+- name: 'type: feature request'
+  color: c5def5
+  description: "'Nice-to-have' improvement, new feature or different behavior or design."
+- name: 'type: process'
+  color: c5def5
+  description: A process-related concern. May include testing, release, or the like.
+- name: 'type: question'
+  color: c5def5
+  description: Request for information or clarification.
+
+- name: 'priority: p0'
+  color: b60205
+  description: Highest priority. Critical issue. P0 implies highest priority.
+- name: 'priority: p1'
+  color: ffa03e
+  description: Important issue which blocks shipping the next release. Will be fixed
+    prior to next release.
+- name: 'priority: p2'
+  color: fef2c0
+  description: Moderately-important priority. Fix may not be included in next release.
+- name: 'priority: p3'
+  color: ffffc7
+  description: Desirable enhancement or fix. May not be included in next release.
+
+- name: 'do not merge'
+  color: d93f0b
+  description: Indicates a pull request not ready for merge, due to either quality
+    or timing.
+
+- name: 'autorelease: pending'
+  color: ededed
+  description: Release please needs to do its work on this.
+- name: 'autorelease: triggered'
+  color: ededed
+  description: Release please has triggered a release for this.
+- name: 'autorelease: tagged'
+  color: ededed
+  description: Release please has completed a release for this.
+
+
+- name: 'docs: deploy-preview'
+  color: BFDADC
+  description: Label to trigger Github Action docs preview.
+
+- name: 'status: help wanted'
+  color: 8befd7
+  description: 'Status: Unplanned work open to contributions from the community.'
+- name: 'status: feedback wanted'
+  color: 8befd7
+  description: 'Status: waiting for feedback from community or issue author.'
+
+- name: 'status: waiting for response'
+  color: 8befd7
+  description: 'Status: reviewer is awaiting feedback or responses from the author before proceeding.'
+
+- name: 'release-please:force-run'
+  color: bdca82
+  description: Manually trigger the release please workflow on a PR.

.github/release-please.yml

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+# Copyright 2025 Google LLC
+#
+# 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.
+
+handleGHRelease: true
+manifest: true