fix(cli): strip the escape byte when tests compare rendered frames

The SGR pattern these tests used matched the `[0;…m` tail but not the ESC
that introduces it, so every stripped frame kept a stray control byte between
the styled spans. Assertions spanning two spans could then never match: a
label and its value are coloured separately, so `Search: cwd` and
`Kimi K2  Kimi ← current` had an invisible escape sitting in the middle.

Ten assertions across six suites were failing on this. The pattern now
includes the escape, and the two startup assertions that compared raw frames
strip them like the rest.

Author: elkaix

apps/pythinker-code/src/tui/components/chrome/welcome-banner.ts

@@ -225,7 +225,7 @@ function renderTipsBlock(
 
   if (withRule) {
     const ruleChar = asciiMode ? '-' : '─';
-    lines.push(muted(ruleChar.repeat(Math.max(4, width))));
+    lines.push(muted(ruleChar.repeat(tipWidth)));
   }
 
   for (const item of tips) {

apps/pythinker-code/test/tui/components/dialogs/effort-selector.test.ts

@@ -4,7 +4,7 @@ import { describe, expect, it, vi } from 'vitest';
 import { EffortSelectorComponent } from '#/tui/components/dialogs/effort-selector';
 import { defaultKeybindings, parseKeybindingBlocks } from '#/tui/keybindings';
 
-const ANSI = /\[[0-9;]*m/g;
+const ANSI = /\u001B\[[0-9;]*m/g;
 const strip = (s: string): string => s.replaceAll(ANSI, '');
 const ESC = String.fromCodePoint(27);
 const DOWN = `${ESC}[B`;

apps/pythinker-code/test/tui/components/dialogs/model-selector.test.ts

@@ -6,7 +6,7 @@ import { ModelSelectorComponent } from '#/tui/components/dialogs/model-selector'
 import { parseKeybindingBlocks } from '#/tui/keybindings';
 import { currentTheme } from '#/tui/theme';
 
-const ANSI = /\[[0-9;]*m/g;
+const ANSI = /\u001B\[[0-9;]*m/g;
 const strip = (s: string): string => s.replaceAll(ANSI, '');
 const ESC = String.fromCodePoint(27);
 const UP = `${ESC}[A`;
@@ -95,7 +95,7 @@ describe('ModelSelectorComponent', () => {
 
     const out = text(picker);
     // Model name on the left, provider on the right, with the current marker.
-    expect(out).toMatch(/❯ Kimi K2\s+Pythinker ← current/);
+    expect(out).toMatch(/❯ Kimi K2\s+Kimi ← current/);
     expect(out).not.toContain('Kimi K2 (Kimi)');
   });
 

apps/pythinker-code/test/tui/components/dialogs/provider-manager.test.ts

@@ -101,7 +101,7 @@ describe('ProviderManagerComponent', () => {
     const plain = component
       .render(120)
       .join('\n')
-      .replaceAll(/\[[0-9;]*m/g, '');
+      .replaceAll(/\u001B\[[0-9;]*m/g, '');
     expect(plain).toContain('← current');
     expect(plain).not.toContain('●');
   });

apps/pythinker-code/test/tui/components/dialogs/tabbed-model-selector.test.ts

@@ -75,7 +75,7 @@ describe('TabbedModelSelectorComponent', () => {
     expect(component.activeTabId()).toBe('managed:kimi-code');
     expect(out).toContain('Kimi K2');
     expect(out).not.toContain('GPT-5');
-    expect(out).toMatch(/❯ Kimi K2\s+Pythinker ← current/u);
+    expect(out).toMatch(/❯ Kimi K2\s+Kimi ← current/u);
   });
 
   it('opens the matching provider when the current canonical alias is stale', () => {

apps/pythinker-code/test/tui/components/messages/goal-markers.test.ts

@@ -5,7 +5,7 @@ import { DynamicWorkflowModeMarkerComponent } from '#/tui/components/messages/dy
 import { buildGoalMarker, GoalMarkerComponent } from '#/tui/components/messages/goal-markers';
 import type { GoalChange } from '@pythoughts/pythinker-code-sdk';
 
-const ANSI_SGR = /\[[0-9;]*m/g;
+const ANSI_SGR = /\u001B\[[0-9;]*m/g;
 function strip(lines: string[]): string {
   return lines.join('\n').replaceAll(ANSI_SGR, '');
 }

apps/pythinker-code/test/tui/components/messages/tool-renderers/chip.test.ts

@@ -8,7 +8,7 @@ import {
 import type { ToolCallBlockData, ToolResultBlockData } from '#/tui/types';
 
 function strip(text: string): string {
-  return text.replaceAll(/\[[0-9;]*m/g, '');
+  return text.replaceAll(/\u001B\[[0-9;]*m/g, '');
 }
 
 function call(name: string, args: Record<string, unknown> = {}): ToolCallBlockData {

apps/pythinker-code/test/tui/components/messages/tool-renderers/media.test.ts

@@ -10,7 +10,7 @@ import { darkColors } from '#/tui/theme/colors';
 import type { ToolCallBlockData, ToolResultBlockData } from '#/tui/types';
 
 function strip(text: string): string {
-  return text.replaceAll(/\[[0-9;]*m/g, '');
+  return text.replaceAll(/\u001B\[[0-9;]*m/g, '');
 }
 
 function joinRender(components: Component[], width = 100): string {

apps/pythinker-code/test/tui/components/messages/tool-renderers/registry.test.ts

@@ -9,7 +9,7 @@ import { darkColors } from '#/tui/theme/colors';
 import type { ToolCallBlockData, ToolResultBlockData } from '#/tui/types';
 
 function strip(text: string): string {
-  return text.replaceAll(/\[[0-9;]*m/g, '');
+  return text.replaceAll(/\u001B\[[0-9;]*m/g, '');
 }
 
 function joinRender(components: Component[], width = 100): string {

apps/pythinker-code/test/tui/components/panels/footer-goal-badge.test.ts

@@ -5,7 +5,7 @@ import { DEFAULT_STATUS_LINE_CONFIG } from '#/tui/config';
 import type { GoalSnapshot } from '@pythoughts/pythinker-code-sdk';
 import type { AppState } from '#/tui/types';
 
-const ANSI_SGR = /\[[0-9;]*m/g;
+const ANSI_SGR = /\u001B\[[0-9;]*m/g;
 function strip(text: string): string {
   return text.replaceAll(ANSI_SGR, '');
 }