fix: clarify trading status messages

docs/binance-orderbook-trade-development.md

@@ -155,6 +155,8 @@ Do not auto-confirm destructive Binance dialogs. The script may open Binance's n
 
 Ladder replacement must stay scoped and direction-aware. Automatic replacement may cancel only visible basic open-order rows for the current symbol and the same plan direction (`开多`, `开空`, `平多`, or `平空`). It must not use current-symbol cancel-all for ladder replacement, must not touch conditional/protection orders, and must retry the ladder plan only after the replacement path is validated by current DOM rows.
 
+User-facing failures must preserve the observed reason instead of collapsing multiple states into one generic message. In particular, an unread openable quantity, a confirmed zero available balance, and a Binance-calculated openable quantity of zero are separate outcomes. Use the panel term `价格精度` consistently instead of exposing the internal `缩放值` name. Cancellation feedback should describe the user-visible action and result, not implementation details such as row-by-row processing, observer roots, context loss, or temporary chart-state manipulation. Combined `A or B` failures are allowed only when the code cannot distinguish the causes; when each branch is already known, report that branch directly.
+
 Continuous ladder trading is available only for close actions through `Option/Alt + click`; an ordinary click remains one round. A round is the complete existing ladder-close workflow, including any scoped same-direction replacement and cleanup. After a completed round, the runner must observe the same symbol, close mode, current precision, and native close button as ready before starting a full one-second cooldown. It must validate readiness again after the cooldown; losing readiness restarts the wait and a new full cooldown. Every new round must rebuild its plan from the latest panel profile and live trading context. A failed, stopped, or interrupted round ends the continuous session.
 
 Continuous-session feedback stays in the shared ladder status row and uses `连续阶梯平多` / `连续阶梯平空` as the stable action name. The action, phase, and counters are separated with ` · ` instead of concatenating `连续` after the ordinary ladder label. `2/3 轮` means two rounds completed out of three started, `本轮 1/3 笔` reports the active or latest partial plan, and `累计 7 笔` reports all confirmed submissions across the session. Confirmed cancellations are appended only when greater than zero. The active round must combine its live progress with the completed-round aggregate; ordinary single-round status text must never overwrite the continuous-session identity. Round outcomes must expose a detached progress snapshot so a terminal continuous summary cannot be overwritten by the latest single-round message.

e2e/binance-orderbook/helpers/live-performance-probe.js

@@ -119,7 +119,7 @@ export function waitForBinanceLivePerformanceCompletion(options = {}) {
 
     if (kind === 'no-orders') {
       if (hasEvent(snapshot, 'dialog-visible') || hasEvent(snapshot, 'dialog-action')) return false;
-      return state.cancelButtonText === '无挂单' || /当前币无挂单/.test(state.statusText);
+      return state.cancelButtonText === '无挂单' || /当前交易对无挂单/.test(state.statusText);
     }
 
     const dialogActions = snapshot.events.filter((event) => event.kind === 'dialog-action');
@@ -128,7 +128,7 @@ export function waitForBinanceLivePerformanceCompletion(options = {}) {
     if (dialogActions[0].detail?.primary !== expectsPrimary) return false;
     return kind === 'dialog-cancel'
       ? state.statusText === '撤单已取消'
-      : /撤单流程结束.*已恢复筛选状态/.test(state.statusText);
+      : state.statusText === '撤单已完成';
   };
 
   return new Promise((resolve, reject) => {

e2e/binance-orderbook/specs/cancel-covering-matrix.pw.js

@@ -57,7 +57,7 @@ for (const entry of CANCEL_COVERING_SCENARIOS) {
       }).click();
       await expect(page.getByText(
         vector.dialogOutcome === 'confirm'
-          ? '撤单流程结束，已恢复筛选状态'
+          ? '撤单已完成'
           : '撤单已取消',
       )).toBeVisible();
     }

e2e/binance-orderbook/specs/cancel-current-symbol.pw.js

@@ -199,7 +199,7 @@ test('confirming with mixed-symbol orders clears only the current symbol', async
   await page.getByRole('button', { name: '撤单' }).click();
   await expect(page.getByRole('dialog')).toBeVisible();
   await page.getByRole('button', { name: '确认' }).click();
-  await expect(page.getByText('撤单流程结束，已恢复筛选状态')).toBeVisible();
+  await expect(page.getByText('撤单已完成')).toBeVisible();
 
   const state = await readFixtureState(page);
   expect(state.orders).toEqual(otherSymbolOrders(scenario));
@@ -219,7 +219,7 @@ test('an originally enabled symbol filter remains enabled after confirmation', a
   await page.getByRole('button', { name: '撤单' }).click();
   await expect(page.getByRole('dialog')).toBeVisible();
   await page.getByRole('button', { name: '确认' }).click();
-  await expect(page.getByText('撤单流程结束，已恢复筛选状态')).toBeVisible();
+  await expect(page.getByText('撤单已完成')).toBeVisible();
 
   const state = await readFixtureState(page);
   expect(state.orders).toEqual(otherSymbolOrders(scenario));
@@ -382,8 +382,8 @@ test('a delayed confirmation keeps visible progress and clears only the current
 
   await page.getByRole('button', { name: '撤单' }).click();
   await page.getByRole('button', { name: '确认' }).click();
-  await expect(page.getByText('已确认撤单，等待当前币挂单清空')).toBeVisible();
-  await expect(page.getByText('撤单流程结束，已恢复筛选状态')).toBeVisible();
+  await expect(page.getByText('撤单已确认，等待挂单清空')).toBeVisible();
+  await expect(page.getByText('撤单已完成')).toBeVisible();
 
   const state = await readFixtureState(page);
   expect(state.orders).toEqual(otherSymbolOrders(scenario));
@@ -425,7 +425,7 @@ test('a confirmed dialog that does not clear current orders reports incomplete c
 
   await page.getByRole('button', { name: '撤单' }).click();
   await page.getByRole('button', { name: '确认' }).click();
-  await expect(page.getByText('当前币挂单仍存在，撤单流程未完成')).toBeVisible({
+  await expect(page.getByText('当前交易对挂单仍存在，撤单未完成')).toBeVisible({
     timeout: 10_000,
   });
 

e2e/binance-orderbook/specs/live-performance-probe.pw.js

@@ -33,7 +33,7 @@ test('live probe captures a no-order run and destroys every listener', async ({
   const firstFeedback = snapshot.events.find((event) => event.kind === 'first-feedback');
   expect(snapshot.finishedAtMonotonicMs - snapshot.startedAtMonotonicMs - firstFeedback.atMs)
     .toBeLessThan(50);
-  expect(snapshot.lastSemanticState.statusText).toBe('当前币无挂单');
+  expect(snapshot.lastSemanticState.statusText).toBe('当前交易对无挂单');
 
   const finishedEventCount = snapshot.events.length;
   await page.evaluate(() => {
@@ -102,7 +102,7 @@ test('live completion waits for confirmed cancellation cleanup', async ({ page }
 
   expect(() => validateLivePerformanceProbeSnapshot(snapshot)).not.toThrow();
   expect(snapshot.events.find((event) => event.kind === 'dialog-action')?.detail?.primary).toBe(true);
-  expect(snapshot.lastSemanticState.statusText).toBe('撤单流程结束，已恢复筛选状态');
+  expect(snapshot.lastSemanticState.statusText).toBe('撤单已完成');
   await destroyLivePerformanceProbe(page);
 });