D347: F10 overlay controller value-adjust + hold-to-repeat

D-pad left/right and stick-X now adjust the selected row's value (A/X/B/Y
kept); 18/4-frame hold-to-repeat added to value adjust and up/down nav,
matching the options screen's D345(e)/(f) cadence. Port-only; user
controller test verified.

docs/dev/findings-index.csv

@@ -224,3 +224,4 @@ D343,PARTIAL,"File select: PC ""Options"" label opens the settings overlay (v0.4
 D344,FIXED,Host PC bugchecks (BSOD 0x119 VIDEO_SCHEDULER_INTERNAL_ERROR) during game test runs; probable cause:,"FIXED (probable cause; orderly quit + GE_QUITFRAME), headless + user-verified; no dump, watch for recurrence."
 D345,FIXED,"Front-end crosshair snaps away from the pointer on screen/page changes (file select → mode select setCursorPOSforMode(0), front.c:2516; every MENU_PC_OPTIONS p…","Port-only, user-verified (parts a–g):"
 D346,PARTIAL,PC-settings wording pass:,Port-only display change landed (optionsoverlay.c rows[]/valueText + one colour match in frontoptions.c); both UIs (F10 overlay + options screen) share the table.
+D347,PARTIAL,F10 overlay controller:,Port-only fix landed (optionsoverlay.c):