docs: update PR template

[no changelog]

.github/pull_request_template.md

@@ -1,12 +1,20 @@
 <!--
-For core developers:
-- Assign yourself to the PR.
-- Set the priority to match the original issue.
-- Add the PR to the current sprint.
-- If it's a draft PR, mark it as "In Progress."
-- If it's a final PR, mark it as "Needs Review."
-- If needed, add a `Notes for QA` section.
-
 For external contributors:
 - Please open an issue before submitting a PR so we can discuss whether we want to proceed with it.
+
+For core developers:
+1. Initial PR setup
+- Assign yourself to the PR.
+- Add it to the "Firmware" project
+  - Set Priority (match issue priority if it exists)
+  - Set Team
+  - Set Sprint (target release)
+
+2. Development status
+- Draft PRs: Set status to "In Progress"
+- Final PRs: Set status to "Needs Review"
+
+3. Post-merge status
+- Testable: Set status to "Needs QA" and add a `Notes for QA` section with clear instructions on how to test the functionality.
+- Not Testable: Set status to "Done (no QA)"
 -->