feat(seer): document the seer github app (#15252)

<!-- Use this checklist to make sure your PR is ready for merge. You may
delete any sections you don't need. -->

## DESCRIBE YOUR PR

Documents the Seer GitHub App as one of our GitHub integrations + links
to this new docs section from various places its mentioned.

## IS YOUR CHANGE URGENT?  

Help us prioritize incoming PRs by letting us know when the change needs
to go live.
- [ ] Urgent deadline (GA date, etc.): <!-- ENTER DATE HERE -->
- [ ] Other deadline: <!-- ENTER DATE HERE -->
- [x] None: Not urgent, can wait up to 1 week+

## PRE-MERGE CHECKLIST

*Make sure you've checked the following before merging your changes:*

- [ ] Checked Vercel preview for correctness, including links
- [ ] PR was reviewed and approved by any necessary SMEs (subject matter
experts)
- [ ] PR was reviewed and approved by a member of the [Sentry docs
team](https://github.com/orgs/getsentry/teams/docs)

Author: jennmueng

docs/organization/integrations/source-code-mgmt/github/index.mdx

@@ -4,7 +4,7 @@ sidebar_order: 1
 description: "Learn more about Sentry's GitHub integration and how it can track and resolve bugs faster by using data from your GitHub commits, and streamline your triaging process by creating a GitHub issue directly from Sentry."
 ---
 
-There are two types of GitHub integrations, so make sure you're choosing the correct one:
+There are three types of GitHub integrations, so make sure you're choosing the correct one:
 - [GitHub](#installing-github) - For individual GitHub users/organizations (as well as most GitHub Enterprise Cloud customers), so long as they are hosted on `github.com`. Follow the '[Installing GitHub](#installing-github)' instructions, **Please begin the installation from Sentry**.
 
 - [GitHub Enterprise](#installing-github-enterprise) - For GitHub Enterprise instances that **cannot be accessed from `github.com`**. Usually these will have a custom domain, for example:
@@ -13,6 +13,7 @@ There are two types of GitHub integrations, so make sure you're choosing the cor
 
   For these accounts, follow the '[Installing GitHub Enterprise](#installing-github-enterprise)' instructions.
 
+- [Seer GitHub App](#installing-the-seer-github-app) - For [Seer](/product/ai-in-sentry/seer) to make Pull Requests for Issue Fixes and for [AI Code Review](/product/ai-in-sentry/ai-code-review) to analyze your Pull Requests.
 
 ### Check Your Domain
 
@@ -216,6 +217,16 @@ Occasionally, Sentry will request additional permissions to your GitHub account
 
 GitHub Enterprise should now be enabled for all projects under your Sentry organization.
 
+## Installing the Seer GitHub App
+
+The [Seer GitHub App](https://github.com/apps/seer-by-sentry) is used by [Seer](/product/ai-in-sentry/seer) to make Pull Requests for Issue Fixes and for [AI Code Review](/product/ai-in-sentry/ai-code-review) to analyze your Pull Requests.
+
+To install the Seer GitHub App, simply follow the installation steps to install the GitHub App for the specified organization/repositories you need. You can find the Seer GitHub App [here](https://github.com/apps/seer-by-sentry).
+
+- For [Issue Fix](/product/ai-in-sentry/seer#issue-fix), you will now be able to create pull requests in the installed locations.
+
+- For [AI Code Review](/product/ai-in-sentry/ai-code-review), continue following the instructions in the [Sentry Prevent AI](/product/ai-in-sentry/sentry-prevent-ai#getting-started) documentation.
+
 ## Configure
 
 Use GitHub to [track commits](#commit-tracking), identify [suspect commits](#suspect-commits-and-suggested-assignees), [resolve via commit or PR](#resolve-via-commit-or-pull-request) and [manage issues](#issue-management).

docs/product/ai-in-sentry/ai-code-review/index.mdx

@@ -15,9 +15,9 @@ AI Code Review helps you generate new tests for uncovered code and reviews your
 
 ## Getting Started
 
-To enable AI Code Review in your GitHub organization or on specific repositories, you need to install the [Seer by Sentry GitHub app](https://github.com/apps/seer-by-sentry). This allows the assistant to analyze pull requests, provide insights, and write tests. **You must also have the [Sentry Github integration](/organization/integrations/source-code-mgmt/github/) enabled.**
+To enable AI Code Review in your GitHub organization or on specific repositories, you need to install the [Seer by Sentry GitHub app](/organization/integrations/source-code-mgmt/github/#installing-the-seer-github-app). This allows the assistant to analyze pull requests, provide insights, and write tests. **You must also have the [Sentry Github integration](/organization/integrations/source-code-mgmt/github/) enabled.**
 
-1. Install the [Seer by Sentry GitHub app](https://github.com/apps/seer-by-sentry) in your GitHub organization or specific repositories.
+1. Install the [Seer by Sentry GitHub app](/organization/integrations/source-code-mgmt/github/#installing-the-seer-github-app) in your GitHub organization or specific repositories.
 2. Enable these required settings in your Sentry [organization settings](https://sentry.io/orgredirect/settings/:orgslug/):
    - `Show Generative AI Features`
    - `Enable AI Code Review`

docs/product/ai-in-sentry/seer/index.mdx

@@ -60,15 +60,16 @@ Seer is a powerful debugging agent, with access to a wide variety of data source
 To start using Seer's capabilities in your Sentry-enabled projects, follow these steps:
 
 1. **Enable generative AI features**: Make sure "Show Generative AI Features" is enabled in your [organization settings](https://sentry.io/orgredirect/organizations/:orgslug/settings/#hideAiFeatures)
-2. **Set up GitHub Integration**: For issue fix capabilities, [connect your GitHub repositories](/organization/integrations/source-code-mgmt/github/)
+2. **Set up GitHub Integration**: For issue fix capabilities, [connect your GitHub repositories](/organization/integrations/source-code-mgmt/github/).
+    - *Optional:* To make Pull Requests with Seer, [configure the Seer GitHub App](/organization/integrations/source-code-mgmt/github/#installing-the-seer-github-app).
 3. **Configure Settings**: Customize Seer's behavior in your project settings under `Seer Automation`. Seer is enabled by default using these settings:
     - **Automatic issue scans**: Enabled
     - **Automatic issue fixes**: Enabled for highly actionable issues and above
 
     > **Note**: You can monitor your Seer usage in the [Stats & Usage tab](https://sentry.io/settings/stats/) and can learn more about managing your Seer budget [here](/pricing/quotas/manage-seer-budget/).
 4. **Start Using**: Look for Seer options in your issue details pages
 
-To start using Seer to for AI code reviews, [configure the Seer GitHub App](/product/ai-in-sentry/ai-code-review/#getting-started).
+To start using Seer to for AI code reviews, [configure the Seer GitHub App](/organization/integrations/source-code-mgmt/github/#installing-the-seer-github-app).
 
 ## Privacy and security
 

docs/product/ai-in-sentry/seer/issue-fix/index.mdx

@@ -82,7 +82,8 @@ Seer already automatically parses rules files from [Cursor](https://docs.cursor.
 
 ## Best Practices
 
-- Setup the GitHub integration, allowing Seer access to your codebase and enabling it to generate code fixes. Enabling the GitHub integration will help Seer to provide better results. See the [Sentry GitHub integration](/organization/integrations/source-code-mgmt/github/) to learn how
+- Setup the GitHub integration, allowing Seer access to your codebase and enabling it to generate code fixes. Enabling the GitHub integration will help Seer to provide better results. See the [Sentry GitHub integration](/organization/integrations/source-code-mgmt/github/) to learn how.
+- Setup the Seer GitHub integration, so Seer can create PRs for you.
 - The more Sentry context you have, the better equipped Seer will be to help: consider instrumenting your application to collect traces, profiles and logs, and send them to Sentry.
 - For JavaScript / TypeScript projects that are minified in production, upload [source maps](/platforms/javascript/sourcemaps/) to Sentry for the best results