chore: prepare v0.6.3 release

changes/2026-03-13-scrum-master-handoff-checks.md

@@ -1,4 +0,0 @@
-type: internal
-area: workflow
-
-- Hardened the `subminer-scrum-master` skill to explicitly answer whether docs updates and changelog fragments are required before handoff.

changes/2026-03-14-aur-release-sync.md

@@ -1,4 +0,0 @@
-type: internal
-area: release
-
-- Automate `subminer-bin` AUR package updates from the tagged release workflow.

changes/controller-inline-remap.md

@@ -1,4 +0,0 @@
-type: changed
-area: overlay
-
-- Expanded the `Alt+C` controller modal into an inline config/remap flow with preferred-controller saving and per-action learn mode for buttons, triggers, and stick directions.

changes/yomitan-external-profile-read-only.md

@@ -1,4 +0,0 @@
-type: changed
-area: yomitan
-
-- Added external-profile mode support that keeps Yomitan dictionaries shared while hardening read-only runtime behavior and first-run setup handling.