fix(terminal): 缩放/高频输出冻结修复（reflow 节流 + 写入批量化），新增诊断日志（7 天滚动 + 开关），v1.0.26

tests/refit-throttle.mjs

@@ -0,0 +1,49 @@
+/**
+ * Refit-throttle self-test (refit-throttle.mjs).
+ *
+ * `src/renderer/src/terminal/fitThrottle.ts` decides whether a resize event
+ * may reflow now or must wait. The contract it pins:
+ *
+ *   - `lastFitAt <= 0` (no fit recorded, e.g. a freshly bound session) always
+ *     fits immediately — the pty spawns at a placeholder size and the shell
+ *     may already be drawing, so the first fit must never wait;
+ *   - inside the throttle window the answer is the REMAINING wait (feeds the
+ *     trailing timer that lands the final fit at the settled size);
+ *   - at and past the window boundary the fit runs now;
+ *   - the window length is configurable so the test does not depend on the
+ *     production constant's value.
+ *
+ * Direct .ts import (no esbuild bundle needed): the module has no imports and
+ * no runtime-only TS syntax, and Node >= 22.18 strips types itself.
+ * Run: node tests/refit-throttle.mjs   (must exit 0)
+ */
+import { FIT_REFLOW_THROTTLE_MS, refitDelay } from '../src/renderer/src/terminal/fitThrottle.ts'
+
+let failed = 0
+const ok = (cond, msg) => {
+  console.log(`  ${cond ? 'ok' : 'FAIL'}: ${msg}`)
+  if (!cond) failed += 1
+}
+
+console.log('the first fit never waits')
+ok(refitDelay(0, 1000) === 0, 'lastFitAt = 0 fits immediately')
+ok(refitDelay(-1, 1000) === 0, 'a negative marker also fits immediately')
+
+console.log('inside the window the answer is the remaining wait')
+ok(refitDelay(1000, 1000) === FIT_REFLOW_THROTTLE_MS, 'a fit at the same tick waits the full window')
+ok(refitDelay(1000, 1100) === FIT_REFLOW_THROTTLE_MS - 100, 'mid-window returns the remainder')
+ok(refitDelay(1000, 1000 + FIT_REFLOW_THROTTLE_MS - 1) === 1, 'one ms before the boundary waits 1ms')
+
+console.log('at and past the boundary the fit runs now')
+ok(refitDelay(1000, 1000 + FIT_REFLOW_THROTTLE_MS) === 0, 'exactly at the boundary fits')
+ok(refitDelay(1000, 100000) === 0, 'long after the last fit fits')
+
+console.log('the window length is a parameter')
+ok(refitDelay(1000, 1050, 150) === 100, 'explicit throttleMs is honored')
+ok(refitDelay(1000, 1150, 150) === 0, 'explicit window boundary fits')
+
+if (failed > 0) {
+  console.error(`\n[refit-throttle] ${failed} check(s) FAILED`)
+  process.exit(1)
+}
+console.log('\n[refit-throttle] ALL CHECKS PASSED')