chore: add the Linux app to the bug template and security policy

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -53,7 +53,9 @@ body:
     id: version
     attributes:
       label: TablePro version
-      description: TablePro > About TablePro. Updates install in the background, so this is often not the newest.
+      description: >-
+        About TablePro shows it. On macOS, updates install in the background, so this is often not the newest.
+        On Linux, `tablepro --version` prints it too.
       placeholder: "0.74.0"
     validations:
       required: true
@@ -74,14 +76,42 @@ body:
     id: os
     attributes:
       label: OS version & hardware
-      placeholder: "macOS 15.3 / Apple Silicon"
+      description: >-
+        On Linux, the distribution and its version, and the desktop and session,
+        which `echo $XDG_CURRENT_DESKTOP $XDG_SESSION_TYPE` prints.
+      placeholder: "macOS 15.3 / Apple Silicon, or Ubuntu 26.04 / GNOME, wayland"
+    validations:
+      required: false
+
+  - type: dropdown
+    id: linux-install
+    attributes:
+      label: Installed from (Linux)
+      options:
+        - Ubuntu PPA
+        - Fedora COPR
+        - Built from source
+    validations:
+      required: false
+
+  - type: textarea
+    id: linux-debug-info
+    attributes:
+      label: Debugging information (Linux)
+      description: >-
+        About TablePro > Troubleshooting > Debugging Information, then Copy Text.
+        It holds versions, not connection details.
+      render: text
     validations:
       required: false
 
   - type: textarea
     id: context
     attributes:
       label: Screenshots / Logs
-      description: If applicable, add screenshots, screen recordings, or crash logs.
+      description: >-
+        If applicable, add screenshots, screen recordings, or crash logs.
+        On Linux, `journalctl --user --boot | grep -i tablepro` shows the log, and crash reports
+        are in `~/.local/state/tablepro/crashes/`. Logs name your hosts and tables, so read them first.
     validations:
       required: false

SECURITY.md

@@ -6,8 +6,8 @@ Email **hello@tablepro.app**. Do not open a public issue, discussion or pull req
 
 Include:
 
-- What is affected and its version: the Mac app, the iPhone and iPad app, a plugin, or tablepro.app.
-- The macOS or iOS version, and the database type when a driver is involved.
+- What is affected and its version: the Mac app, the iPhone and iPad app, the Linux app, a plugin, or tablepro.app.
+- The macOS or iOS version, or the Linux distribution and where the app came from, and the database type when a driver is involved.
 - Steps to reproduce, or a proof of concept.
 - What an attacker gains: the data or access exposed.
 
@@ -17,9 +17,10 @@ Write in English or Vietnamese.
 
 - The Mac app.
 - The iPhone and iPad app.
+- The Linux app, from the Launchpad PPA, the COPR project or a source build of a release.
 - The plugins, bundled with the app or installed from the [plugin registry](https://github.com/TableProApp/plugins).
 - The website, [tablepro.app](https://tablepro.app).
 
 ## Supported versions
 
-Only the latest release of each app and plugin gets security fixes. A fix ships in a new release and is listed under **Security** in [CHANGELOG.md](CHANGELOG.md). Older releases are not patched. Check that the problem is still in the latest release before you report it.
+Only the latest release of each app and plugin gets security fixes. A fix ships in a new release and is listed under **Security** in [CHANGELOG.md](CHANGELOG.md), or in `linux/CHANGELOG.md` for the Linux app. Older releases are not patched. Check that the problem is still in the latest release before you report it.