perf(输入法): 降低查词与候选内存开销并放大等尺寸26键

com.sydxky.rtos.inputmethod/tests/client.test.mjs

@@ -33,7 +33,7 @@ p=page({inputType:'password',initial:'😀secret'});p.toggleLearning();check(!p.
 p=page({inputType:'password',revealSecret:true,initial:'Visible123!'});check(p.display.includes('Visible123!')&&p.secret&&!p.learning,'explicit password reveal preserves private input');p.toggleLearning();check(!p.learning,'revealed password cannot enable learning');p.onHide();check(!p.text&&!p.initial&&!p.original,'revealed password clears on hide')
 p=page({initial:'你😀好'});p.cursor=2;p.backspace();check(p.text==='你好','UI Unicode deletion')
 p.startDelete();check(p.repeatDelay!==null,'delete hold delay starts');p.onHide();check(p.repeatDelay===null&&p.repeatTimer===null,'hide stops repeat timers')
-p=page();let resolve;p.dictionary={lookup:()=>new Promise(yes=>resolve=yes)};p.composition='64';const pending=p.query(p.requestId);p.onHide();resolve([{word:'你',consume:2,pinyin:'ni'}]);await pending;check(p.total===0,'late dictionary response cannot update hidden page')
+p=page();let resolve;p.dictionary={lookup:()=>new Promise(yes=>resolve=yes),clear(){}};p.composition='64';const pending=p.query(p.requestId);p.onHide();resolve([{word:'你',consume:2,pinyin:'ni'}]);await pending;check(p.total===0,'late dictionary response cannot update hidden page')
 p=page();p.mode='py';p.composition='shi';await p.query(p.requestId);p.expand();check(p.visibleCandidates.length===16&&p.candidateRows.length===4,'expanded single characters use 16 real candidate cells');p.nextPage();check(p.candidatePage===1&&p.visibleCandidates[0]===p.allCandidates[16],'next grid page continues without omissions');check(!ux.includes('item.pinyin}}')&&!ux.includes('class="reading"'),'expanded cells do not display pronunciation');
 p=page({maxLength:2,initial:'你'});p.composition='nihao';p.allCandidates=[{word:'你好',consume:5,pinyin:'nihao'}];p.choose(p.allCandidates[0]);check(p.text==='你'&&p.composition==='nihao','candidate is not silently truncated')
 p.finish();check(p.composition==='nihao','finish does not silently drop uncommitted composition')