refactor(ui): fix import paths after directory restructuring, extract paste/history hooks

- Fix stale relative import paths in cli.tsx, ConfigDropdown, DropdownMenu,
  McpStatusList, UpdatePrompt, and App.tsx after src/ui/ directory restructuring
- Extract handlePaste/expandPasteMarkerAtCursor into usePasteHandling hook
- Extract navigateHistory into useHistoryNavigation hook
- Clean up unused imports in App.tsx, move resolveCurrentSettings locally

Author: xinggitxing

src/cli.tsx

@@ -5,7 +5,7 @@ import { checkForNpmUpdate, promptForPendingUpdate, type PackageInfo } from "./c
 import { AppContainer } from "./ui";
 import { t } from "./common/i18n";
 import { initI18n } from "./common/i18n";
-import { resolveCurrentSettings } from "./ui/App";
+import { resolveCurrentSettings } from "./ui/views/App";
 
 const args = process.argv.slice(2);
 const packageInfo = readPackageInfo();

src/ui/components/ConfigDropdown/index.tsx

@@ -1,6 +1,6 @@
 import React, { useEffect, useState } from "react";
 import { useInput } from "ink";
-import DropdownMenu from "../../DropdownMenu";
+import DropdownMenu from "../DropdownMenu";
 import { t, type Locale } from "../../../common/i18n";
 
 type ConfigStep = "category" | "language";

src/ui/components/DropdownMenu/index.tsx

@@ -1,7 +1,7 @@
 import React, { useMemo } from "react";
 import { Box, Text } from "ink";
-import { displayWidth } from "../common/display-width";
-import { t } from "../common/i18n";
+import { displayWidth } from "../../../common/display-width";
+import { t } from "../../../common/i18n";
 
 /**
  * Generic dropdown menu item structure

src/ui/views/App.tsx

@@ -26,16 +26,12 @@ import { useI18n } from "../contexts/i18n";
 import { t } from "../../common/i18n";
 import type { Locale } from "../../common/i18n";
 import { renderMessageToStdout } from "../components/MessageView/utils";
-import {
-  buildPromptDraftFromSessionMessage,
-  buildStatusLine,
-  buildSyntheticUserMessage,
-  formatModelConfig,
-  isCurrentSessionEmpty,
-  renderRawModeMessages,
-} from "../utils";
-import { resolveCurrentSettings, writeModelConfigSelection } from "../../settings";
-import { isCollapsedThinking } from "../core/thinking-state";
+import { renderRawModeMessages } from "../utils";
+import * as fs from "fs";
+import * as path from "path";
+import * as os from "os";
+import type { DeepcodingSettings, ResolvedDeepcodingSettings } from "../../settings";
+import { applyModelConfigSelection, resolveSettingsSources, DEFAULT_MODEL, DEFAULT_BASE_URL } from "../../settings";
 import { ANSI_CLEAR_SCREEN } from "../constants";
 import type {
   LlmStreamProgress,
@@ -987,7 +983,7 @@ export function resolveCurrentSettings(projectRoot: string = process.cwd()): Res
   );
 }
 
-export { createOpenAIClient } from "../common/openai-client";
+export { createOpenAIClient } from "../../common/openai-client";
 
 function getUserSettingsPath(): string {
   return path.join(os.homedir(), ".deepcode", "settings.json");

src/ui/views/McpStatusList.tsx

@@ -1,4 +1,4 @@
-import { t } from "../common/i18n";
+import { t } from "../../common/i18n";
 import React, { useState, useMemo, useCallback } from "react";
 import { Box, Text, useInput, useWindowSize } from "ink";
 import type { McpServerStatus } from "../../mcp/mcp-manager";

src/ui/views/PromptInput.tsx

@@ -604,106 +604,6 @@ export const PromptInput = React.memo(function PromptInput({
     });
   }
 
-  function handlePaste(pastedText: string): void {
-    const totalChars = pastedText.length;
-
-    if (totalChars <= 1000) {
-      const newlineCount = (pastedText.match(/\n/g) ?? []).length;
-      if (newlineCount <= 9) {
-        const clean = pastedText
-          .replace(/\r\n|\r/g, "\n")
-          .replace(/[\x00-\x08\x0b\x0c\x0e-\x1f\x7f]/g, "")
-          .replace(/\t/g, "    ");
-        updateBuffer((s) => insertText(s, clean));
-        return;
-      }
-    }
-
-    // Large paste: store raw text, insert marker with line/char count.
-    const lineCount = (pastedText.match(/\n/g) ?? []).length + 1;
-    pasteCounterRef.current += 1;
-    const pasteId = pasteCounterRef.current;
-    pastesRef.current.set(pasteId, pastedText);
-
-    const marker =
-      lineCount > 10 ? `[paste #${pasteId} +${lineCount} lines]` : `[paste #${pasteId} ${totalChars} chars]`;
-
-    updateBuffer((s) => insertText(s, marker));
-  }
-
-  function expandPasteMarkerAtCursor(): void {
-    // First, try to collapse an already-expanded region at the cursor.
-    for (const [id, region] of expandedRegionsRef.current) {
-      if (buffer.cursor >= region.start && buffer.cursor <= region.end) {
-        // Collapse back to marker.
-        expandedRegionsRef.current.delete(id);
-        pastesRef.current.set(id, region.content);
-        setTimeout(() => {
-          updateBuffer((s) => {
-            const text = s.text.slice(0, region.start) + region.marker + s.text.slice(region.end);
-            return { text, cursor: region.start + region.marker.length };
-          });
-        }, 0);
-        return;
-      }
-    }
-
-    // No expanded region at cursor — try to expand a paste marker.
-    const marker = findPasteMarkerContaining(buffer);
-    if (!marker) {
-      setStatusMessage(t("ui.promptInput.noPasteMarker"));
-      return;
-    }
-    const content = pastesRef.current.get(marker.id);
-    if (!content) {
-      setStatusMessage(t("ui.promptInput.pasteNotFound"));
-      return;
-    }
-
-    const pasteId = marker.id;
-    const originalMarker = buffer.text.slice(marker.start, marker.end);
-    pastesRef.current.delete(pasteId);
-
-    setTimeout(() => {
-      updateBuffer((s) => {
-        const text = s.text.slice(0, marker.start) + cleanPasteContent(content) + s.text.slice(marker.end);
-        const newEnd = marker.start + content.length;
-        expandedRegionsRef.current.set(pasteId, {
-          start: marker.start,
-          end: newEnd,
-          content,
-          marker: originalMarker,
-        });
-        return { text, cursor: marker.start };
-      });
-    }, 0);
-  }
-
-  function navigateHistory(direction: -1 | 1): void {
-    if (promptHistory.length === 0) {
-      return;
-    }
-
-    const previousCursor = historyCursor === -1 ? promptHistory.length : historyCursor;
-    const nextCursor = Math.max(0, Math.min(promptHistory.length, previousCursor + direction));
-    const draft = historyCursor === -1 ? buffer.text : draftBeforeHistory;
-
-    if (historyCursor === -1) {
-      setDraftBeforeHistory(buffer.text);
-    }
-
-    if (nextCursor === promptHistory.length) {
-      const text = draft ?? "";
-      setBuffer({ text, cursor: text.length });
-      setHistoryCursor(-1);
-      setDraftBeforeHistory(null);
-      return;
-    }
-
-    const text = promptHistory[nextCursor] ?? "";
-    setBuffer({ text, cursor: text.length });
-    setHistoryCursor(nextCursor);
-  }
   function insertFileMentionSelection(item: FileMentionItem): void {
     if (!fileMentionToken) {
       return;

src/ui/views/UpdatePrompt.tsx

@@ -1,6 +1,6 @@
 import React, { useState } from "react";
 import { Box, Text, useApp, useInput } from "ink";
-import { t } from "../common/i18n";
+import { t } from "../../common/i18n";
 
 export type UpdatePromptChoice = "install" | "ignore-once" | "ignore-version";