feat: complete campaign flow and optimize battle assets

scripts/verify-battle-save-normalization.mjs

@@ -35,6 +35,16 @@ try {
   assert(normalizeBattleSaveSlot(Number.NaN, 3) === 1, 'Expected NaN slot to normalize to slot 1.');
   assert(normalizeBattleSaveSlot(99, 3) === 3, 'Expected overflowing slot to clamp to slot count.');
   assert(isValidBattleSaveState(validState, options), 'Expected valid battle save to pass validation.');
+  const parsedProgressedStats = parseBattleSaveState(JSON.stringify(validState), options)?.units[0]?.stats;
+  assert(
+    JSON.stringify(parsedProgressedStats) === JSON.stringify(validState.units[0].stats),
+    'Expected battle-earned unit attributes to round-trip through battle-save parsing.'
+  );
+  const legacyUnitsWithoutStats = validState.units.map(({ stats: _stats, ...unit }) => unit);
+  assert(
+    isValidBattleSaveState({ ...validState, units: legacyUnitsWithoutStats }, options),
+    'Expected legacy battle saves without unit attributes to remain valid.'
+  );
   const validCompletedAttackHistoryState = {
     ...validState,
     actedUnitIds: ['liu-bei', 'guan-yu'],
@@ -361,6 +371,9 @@ try {
     ['invalid unit attack', { units: patchUnit(0, { attack: -1 }) }],
     ['invalid unit move precision', { units: patchUnit(0, { move: 3.5 }) }],
     ['too high unit move', { units: patchUnit(0, { move: 100 }) }],
+    ['invalid unit stats shape', { units: patchUnit(0, { stats: { might: 80 } }) }],
+    ['invalid unit stats precision', { units: patchUnit(0, { stats: { ...validState.units[0].stats, agility: 72.5 } }) }],
+    ['too high unit stat', { units: patchUnit(0, { stats: { ...validState.units[0].stats, might: 1000 } }) }],
     ['duplicate live unit tile', { units: patchUnit(1, { x: validState.units[0].x, y: validState.units[0].y }) }],
     ['invalid unit x', { units: patchUnit(0, { x: 12 }) }],
     ['invalid unit direction', { units: patchUnit(0, { direction: 'down' }) }],
@@ -567,6 +580,7 @@ function createValidBattleSaveState() {
         maxHp: 30,
         attack: 10,
         move: 4,
+        stats: { might: 78, intelligence: 82, leadership: 85, agility: 72, luck: 88 },
         x: 1,
         y: 2,
         direction: 'south',
@@ -580,6 +594,7 @@ function createValidBattleSaveState() {
         maxHp: 34,
         attack: 14,
         move: 4,
+        stats: { might: 97, intelligence: 76, leadership: 92, agility: 73, luck: 69 },
         x: 2,
         y: 2,
         direction: 'south',
@@ -593,6 +608,7 @@ function createValidBattleSaveState() {
         maxHp: 20,
         attack: 8,
         move: 3,
+        stats: { might: 52, intelligence: 34, leadership: 39, agility: 46, luck: 41 },
         x: 8,
         y: 4,
         direction: 'west',