perf(输入法): 降低查词与候选内存开销并放大等尺寸26键

docs/1.2.5/PERFORMANCE.json

@@ -0,0 +1,48 @@
+{
+  "method": "Node V8 comparison with identical dictionary; heap figures are host measurements, not MCU or watch RAM",
+  "exactCandidateCases": 24,
+  "completionCases": 24,
+  "runtimePresenceShards": 7291,
+  "baseline": {
+    "queries": 120,
+    "resultCount": 25845,
+    "reads": 681,
+    "readChars": 3294647,
+    "largestRead": 91357,
+    "retainedHeapBytes": 1149800,
+    "medianMs": 1.0108999999999924,
+    "p95Ms": 6.702500000000001,
+    "totalMs": 227.1215,
+    "stats": null
+  },
+  "optimized": {
+    "queries": 120,
+    "resultCount": 25845,
+    "reads": 681,
+    "readChars": 3205448,
+    "largestRead": 82520,
+    "retainedHeapBytes": 805848,
+    "medianMs": 1.0670999999999822,
+    "p95Ms": 5.014200000000017,
+    "totalMs": 194.86530000000027,
+    "stats": {
+      "reads": 681,
+      "readChars": 3205448,
+      "hits": 0,
+      "cacheChars": 34340,
+      "cacheEntries": 3
+    }
+  },
+  "pagePlan": {
+    "candidates": 12000,
+    "pages": 808,
+    "maxVisibleCells": 15
+  },
+  "runtimeIndexBytes": 2158,
+  "auditMetadataBytes": 91357,
+  "reactiveProperties": {
+    "baseline": 40,
+    "optimized": 29
+  },
+  "passed": true
+}