docs: add host docs for pr, issue and notification sections

Author: phgermanov

docs/src/content/docs/configuration/issue-section.mdx

@@ -7,13 +7,15 @@ title: Issue Sections
 Defines a section in the dashboard's issues view.
 
 - Every section must define a [`title`] and [`filters`].
+- When you define [`host`] for a section, that section fetches data from that GitHub host.
 - When you define [`limit`] for a section, that value overrides the
   [`defaults.issuesLimit`] setting.
 - When you define [`layout`] for a section, that value overrides the
   [`defaults.layout.issue`] setting.
 
 [`title`]: #issues-title-title
 [`filters`]: #issues-filters-filters
+[`host`]: #github-host-host
 [`limit`]: #issues-fetch-limit-limit
 [`layout`]: #issues-section-layout-layout
 [`defaults.issuesLimit`]: /configuration/defaults/#issue-fetch-limit-issueslimit
@@ -50,6 +52,30 @@ For more information about writing filters for searching GitHub, see [Searching]
 
 [Searching]: /configuration/searching
 
+## GitHub Host (`host`)
+
+| Type   | Default |
+| :----- | :------ |
+| String | (empty) |
+
+This setting specifies the GitHub host for this section. Use this when you need to fetch
+issues from a GitHub Enterprise instance or a different GitHub host.
+
+When not specified or empty, the section uses the default GitHub host (github.com or the
+host configured in your `gh` CLI).
+
+### Example
+
+```yaml
+issuesSections:
+  - title: Enterprise Issues
+    filters: is:open author:@me
+    host: github.enterprise.com
+  - title: GitHub.com Issues
+    filters: is:open author:@me
+    # no host = default (github.com)
+```
+
 ## Issues Section Layout (`layout`)
 
 You can define how a Issues section displays items in its table by setting options for the

docs/src/content/docs/configuration/notification-section.mdx

@@ -7,11 +7,13 @@ title: Notification Sections
 Defines sections in the dashboard's Notifications view.
 
 - Every section must define a [`title`] and [`filters`].
+- When you define [`host`] for a section, that section fetches data from that GitHub host.
 - When you define [`limit`] for a section, that value overrides the
   [`defaults.notificationsLimit`] setting.
 
 [`title`]: #notification-title-title
 [`filters`]: #notification-filters-filters
+[`host`]: #github-host-host
 [`limit`]: #notification-fetch-limit-limit
 [`defaults.notificationsLimit`]: /configuration/defaults/#notifications-fetch-limit-notificationslimit
 
@@ -116,6 +118,30 @@ This setting defines the filters for notifications in the section's table. Notif
 - **Explicit `is:unread`**: Shows only unread notifications, excluding bookmarked read notifications
 - **Reason filters**: Applied client-side after fetching from GitHub's API
 
+## GitHub Host (`host`)
+
+| Type   | Default |
+| :----- | :------ |
+| String | (empty) |
+
+This setting specifies the GitHub host for this section. Use this when you need to fetch
+notifications from a GitHub Enterprise instance or a different GitHub host.
+
+When not specified or empty, the section uses the default GitHub host (github.com or the
+host configured in your `gh` CLI).
+
+### Example
+
+```yaml
+notificationsSections:
+  - title: Enterprise Notifications
+    filters: ""
+    host: github.enterprise.com
+  - title: GitHub.com Notifications
+    filters: ""
+    # no host = default (github.com)
+```
+
 ## Notification Fetch Limit (`limit`)
 
 | Type    | Minimum | Default |

docs/src/content/docs/configuration/pr-section.mdx

@@ -7,13 +7,15 @@ title: PR Sections
 Defines a section in the dashboard's PRs view.
 
 - Every section must define a [`title`] and [`filters`].
+- When you define [`host`] for a section, that section fetches data from that GitHub host.
 - When you define [`limit`] for a section, that value overrides the
   [`defaults.prsLimit`] setting.
 - When you define [`layout`] for a section, that value overrides the
   [`defaults.layout.pr`] setting.
 
 [`title`]: #pr-title-title
 [`filters`]: #pr-filters-filters
+[`host`]: #github-host-host
 [`limit`]: #pr-fetch-limit-limit
 [`layout`]: #pr-section-layout-layout
 [`defaults.prsLimit`]: /configuration/defaults/#pr-fetch-limit
@@ -50,6 +52,30 @@ For more information about writing filters for searching GitHub, see [Searching]
 
 [Searching]: /configuration/searching
 
+## GitHub Host (`host`)
+
+| Type   | Default |
+| :----- | :------ |
+| String | (empty) |
+
+This setting specifies the GitHub host for this section. Use this when you need to fetch
+PRs from a GitHub Enterprise instance or a different GitHub host.
+
+When not specified or empty, the section uses the default GitHub host (github.com or the
+host configured in your `gh` CLI).
+
+### Example
+
+```yaml
+prSections:
+  - title: Enterprise PRs
+    filters: is:open author:@me
+    host: github.enterprise.com
+  - title: GitHub.com PRs
+    filters: is:open author:@me
+    # no host = default (github.com)
+```
+
 ## PR Section Layout (`layout`)
 
 You can define how a PR section displays items in its table by setting options for the