Port the introduction's naming and clock screens

A new game now runs NewGame's InitGender and OakSpeech natively before
the bedroom: Boy or Girl, InitClock's hour and minute steppers with
their YES/NO confirmations, Oak's speech with Wooper, and NamePlayer's
preset names or naming field (a blank name takes CHRIS or KRIS). Texts,
menus and time strings come from a new INTRO profile table verified by
check:reference; Oak's and the player's pictures decode from
TrainerPicPointers, ChrisPic/KrisPic and TrainerPalettes.

The chosen time is kept as a minute offset from the device clock, which
time of day, the weekday, NPC hours and the daily reset now read. The
intro runs only when nothing is saved; a save made during it starts it
again. Saves gain intro and clock.minuteOffset, migrated by absence. The
shell's name and character fields are gone. Intentional change: the
steppers start at the device time rather than 10:00.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/native.test.ts

@@ -90,7 +90,7 @@ describe("native ROM formats", () => {
       sceneOwner: () => undefined,
       timeMask: () => 2,
       clock: () => ({ weekday: 0, hours: 12, minutes: 0 }),
-      deviceWeekday: () => 0,
+      clockDay: () => 0,
       text: () => defaultTextContext("KAWA"),
     };
     const yes = new ScriptRun(new RomReader(bytes), 0, state, host);
@@ -260,7 +260,7 @@ describe.skipIf(!existsSync(romPath))(
       expect(save.scenes).toEqual({ "24:6": 1 });
       expect(save.phone).toEqual([1]);
       // 2026-09-22 is a Tuesday; the chosen Monday is six days ahead.
-      expect(save.clock).toEqual({ weekdayOffset: 6, dst: true });
+      expect(save.clock).toEqual({ minuteOffset: 0, weekdayOffset: 6, dst: true });
       expect(world.clock().weekday).toBe(1);
       expect(world.state.flags.size).toBe(flags + 2);
       expect(world.state.events.has(1735)).toBe(true);
@@ -839,7 +839,7 @@ describe.skipIf(!existsSync(romPath))(
         sceneOwner: () => undefined,
         timeOfDay: () => 1,
         clock: () => ({ weekday: 0, hours: 12, minutes: 0 }),
-        deviceWeekday: () => 0,
+        clockDay: () => 0,
         text: () => defaultTextContext("CHRIS"),
         data: assets.pokemon,
         player: () => ({ id: 0, gender: 0 as const }),