fix: settings size and sidebar chat actions

.github/workflows/build.yml

@@ -92,7 +92,6 @@ jobs:
           VITE_GITHUB_CLIENT_ID: ${{ secrets.DC_GITHUB_CLIENT_ID }}
           VITE_GITHUB_CLIENT_SECRET: ${{ secrets.DC_GITHUB_CLIENT_SECRET }}
           VITE_GITHUB_REDIRECT_URI: ${{ secrets.DC_GITHUB_REDIRECT_URI }}
-          VITE_PROVIDER_DB_URL: ${{ secrets.CDN_PROVIDER_DB_URL }}
 
       - name: Verify packaged DuckDB VSS for Windows
         shell: bash
@@ -169,7 +168,6 @@ jobs:
           VITE_GITHUB_CLIENT_ID: ${{ secrets.DC_GITHUB_CLIENT_ID }}
           VITE_GITHUB_CLIENT_SECRET: ${{ secrets.DC_GITHUB_CLIENT_SECRET }}
           VITE_GITHUB_REDIRECT_URI: ${{ secrets.DC_GITHUB_REDIRECT_URI }}
-          VITE_PROVIDER_DB_URL: ${{ secrets.CDN_PROVIDER_DB_URL }}
 
       - name: Verify packaged DuckDB VSS for Linux
         shell: bash
@@ -263,7 +261,6 @@ jobs:
           VITE_GITHUB_CLIENT_SECRET: ${{ secrets.DC_GITHUB_CLIENT_SECRET }}
           VITE_GITHUB_REDIRECT_URI: ${{ secrets.DC_GITHUB_REDIRECT_URI }}
           NODE_OPTIONS: '--max-old-space-size=4096'
-          VITE_PROVIDER_DB_URL: ${{ secrets.CDN_PROVIDER_DB_URL }}
 
       - name: Verify packaged DuckDB VSS for macOS
         shell: bash

.github/workflows/prcheck.yml

@@ -86,4 +86,3 @@ jobs:
       - name: Build
         run: pnpm run build
         env:
-          VITE_PROVIDER_DB_URL: ${{ secrets.CDN_PROVIDER_DB_URL }}

.github/workflows/release.yml

@@ -186,7 +186,6 @@ jobs:
           VITE_GITHUB_CLIENT_ID: ${{ secrets.DC_GITHUB_CLIENT_ID }}
           VITE_GITHUB_CLIENT_SECRET: ${{ secrets.DC_GITHUB_CLIENT_SECRET }}
           VITE_GITHUB_REDIRECT_URI: ${{ secrets.DC_GITHUB_REDIRECT_URI }}
-          VITE_PROVIDER_DB_URL: ${{ secrets.CDN_PROVIDER_DB_URL }}
 
       - name: Verify packaged DuckDB VSS for Windows
         shell: bash
@@ -263,7 +262,6 @@ jobs:
           VITE_GITHUB_CLIENT_ID: ${{ secrets.DC_GITHUB_CLIENT_ID }}
           VITE_GITHUB_CLIENT_SECRET: ${{ secrets.DC_GITHUB_CLIENT_SECRET }}
           VITE_GITHUB_REDIRECT_URI: ${{ secrets.DC_GITHUB_REDIRECT_URI }}
-          VITE_PROVIDER_DB_URL: ${{ secrets.CDN_PROVIDER_DB_URL }}
 
       - name: Verify packaged DuckDB VSS for Linux
         shell: bash
@@ -360,7 +358,6 @@ jobs:
           VITE_GITHUB_CLIENT_SECRET: ${{ secrets.DC_GITHUB_CLIENT_SECRET }}
           VITE_GITHUB_REDIRECT_URI: ${{ secrets.DC_GITHUB_REDIRECT_URI }}
           NODE_OPTIONS: '--max-old-space-size=4096'
-          VITE_PROVIDER_DB_URL: ${{ secrets.CDN_PROVIDER_DB_URL }}
 
       - name: Verify packaged DuckDB VSS for macOS
         shell: bash

.github/workflows/windows-arm64-e2e.yml

@@ -58,7 +58,6 @@ jobs:
           VITE_GITHUB_CLIENT_ID: ${{ secrets.DC_GITHUB_CLIENT_ID }}
           VITE_GITHUB_CLIENT_SECRET: ${{ secrets.DC_GITHUB_CLIENT_SECRET }}
           VITE_GITHUB_REDIRECT_URI: ${{ secrets.DC_GITHUB_REDIRECT_URI }}
-          VITE_PROVIDER_DB_URL: ${{ secrets.CDN_PROVIDER_DB_URL }}
 
       - name: Verify bundled plugins
         shell: bash

docs/architecture/dead-code-cleanup-2026-06/spec.md

@@ -0,0 +1,34 @@
+# Dead Code Cleanup 2026-06 - Spec
+
+## Problem
+
+Two confirmed dead-code candidates remain:
+
+- `readDirectoryTree` in `src/main/presenter/workspacePresenter/directoryReader.ts`
+- `src/renderer/src/composables/usePageCapture.example.ts`
+
+They are not used by production code or tests except for self-reference/commented example references.
+
+## Goal
+
+Remove confirmed dead code without changing runtime behavior.
+
+## Evidence
+
+- `rg readDirectoryTree src test docs` only finds the deprecated function and its recursive self-call.
+- Production message capture imports `@/composables/message/useMessageCapture`, not `usePageCapture.example`.
+- `usePageCapture.example.ts` is an example file under `src/renderer/src`, which keeps it in source search/typecheck scope.
+
+## Acceptance Criteria
+
+1. `rg readDirectoryTree src test docs` returns no live production/test references after cleanup.
+2. `rg usePageCapture.example src test docs` returns no live production/test references after cleanup.
+3. No runtime imports are changed except removing dead exports/files.
+4. Typecheck and lint pass.
+
+## Non-Goals
+
+- Do not run a broad dead-code sweep.
+- Do not refactor workspace directory loading.
+- Do not rewrite page capture implementation.
+

docs/architecture/provider-db-github-source/spec.md

@@ -0,0 +1,21 @@
+# Provider DB GitHub Source - Spec
+
+## Problem
+
+Release builds can inject `VITE_PROVIDER_DB_URL` from `CDN_PROVIDER_DB_URL`, while local/test builds use the GitHub-hosted provider database. The CDN is being retired, so builds and runtime refreshes must stop depending on CDN injection.
+
+## Goal
+
+Use the GitHub provider database URL everywhere and remove provider DB URL override support from build workflows and runtime code.
+
+## Acceptance Criteria
+
+1. CI/release workflows no longer inject `CDN_PROVIDER_DB_URL` or `VITE_PROVIDER_DB_URL`.
+2. Runtime provider DB refresh always uses the GitHub default URL.
+3. Build-time provider DB fetch always uses the GitHub default URL.
+4. Type declarations no longer expose `VITE_PROVIDER_DB_URL`.
+5. The retired CDN hostname has no repository references.
+
+## Non-Goals
+
+- Do not remove unrelated `deepchatai.cn` official website, OAuth callback, or referer usage.

docs/features/sidebar-chat-section-actions/spec.md

@@ -0,0 +1,51 @@
+# Sidebar Section New Chat Actions - Spec
+
+## Problem
+
+The sidebar Chat section header still shows a leading message icon and has no local new-chat action. Project folder headers also require the same local new-chat affordance, but only when the sidebar is grouped by project folders.
+
+## Goal
+
+Make Chat and Project folder headers use the same compact row interaction: hover covers the whole row, `+` appears inside the row action area, and new chats start with the matching workspace selected.
+
+## UI Shape
+
+Chat:
+
+```text
+Chat                                      [+]
+  Chat session
+  Chat session
+```
+
+Project folder mode:
+
+```text
+folder design                         [+] [...]
+  Project session
+```
+
+Time grouping:
+
+```text
+Today
+  Project session
+```
+
+## Acceptance Criteria
+
+1. The Chat section title no longer renders a leading icon.
+2. Clicking the Chat title still collapses and expands Chat sessions.
+3. Hovering the Chat row covers the title and `+` action area as one row.
+4. Clicking the Chat `+` selects the Chat workspace and starts a new chat through the existing route/new-conversation path.
+5. Clicking the Chat `+` does not toggle the Chat section collapse state.
+6. Project folder rows show a `+` action before the existing `...` action when grouped by project.
+7. Clicking a Project folder `+` selects that project workspace and starts a new chat.
+8. Time-grouped rows do not show folder `+` actions.
+9. No new user-facing strings are introduced.
+
+## Non-Goals
+
+- Do not redesign Workspace grouping.
+- Do not change how sessions are persisted or created from `NewThreadPage`.
+- Do not change Remote features.

docs/issues/settings-window-overflow/spec.md

@@ -0,0 +1,30 @@
+# Settings Window Overflow - Spec
+
+## Problem
+
+Settings can be resized below the width assumed by several fixed-width rows. The window state persists user size, but `createSettingsWindow` sets no minimum size. A narrow Settings window can squeeze the fixed `w-60` sidebar plus rows that combine `min-w-[220px]` labels and `w-[320px]` controls.
+
+## Goal
+
+Prevent Settings content from overflowing horizontally at the smallest supported Settings window size.
+
+## Evidence
+
+- `src/main/presenter/windowPresenter/index.ts` creates the Settings `BrowserWindow` with default size only.
+- `src/renderer/settings/App.vue` uses a fixed `w-60` sidebar.
+- `src/renderer/settings/components/common/DefaultModelSettingsSection.vue` and `ProxySettingsSection.vue` use fixed 220px labels plus 320px controls.
+- `src/renderer/settings/components/MemoryConfigPanel.vue` already shows the preferred responsive control pattern: `w-full min-w-0 ... md:w-[320px]`.
+
+## Acceptance Criteria
+
+1. A Settings window cannot be resized or restored narrower than the width required by current fixed rows.
+2. At the minimum width, Settings pages do not show horizontal document overflow.
+3. No new user-facing strings are introduced.
+4. Existing Settings window state restore behavior still works for valid saved sizes.
+
+## Non-Goals
+
+- Do not redesign Settings layout.
+- Do not rewrite every Settings row in this pass.
+- Do not change main-window Plugins pages.
+

scripts/fetch-provider-db.mjs

@@ -228,7 +228,7 @@ function sanitizeAggregateJson(json) {
 }
 
 async function main() {
-  const url = process.env.PROVIDER_DB_URL || DEFAULT_URL
+  const url = DEFAULT_URL
   const outDir = path.resolve(process.cwd(), 'resources', 'model-db')
   const outFile = path.join(outDir, 'providers.json')
   const tmpFile = outFile + '.tmp'

src/main/env.d.ts

@@ -7,7 +7,6 @@ interface ImportMetaEnv {
   readonly VITE_LOG_IPC_CALL: string
   readonly VITE_AGENT_PRESENTER_DEBUG?: string
   readonly VITE_APP_LIFECYCLE_HOOK_DELAY?: string
-  readonly VITE_PROVIDER_DB_URL?: string
 }
 
 interface ImportMeta {

src/main/presenter/configPresenter/providerDbLoader.ts

@@ -178,12 +178,6 @@ export class ProviderDbLoader {
   }
 
   private getProviderDbUrl(): string {
-    const value = import.meta.env.VITE_PROVIDER_DB_URL
-    if (typeof value === 'string') {
-      const trimmed = value.trim()
-      if (trimmed.length > 0) return trimmed
-    }
-
     return DEFAULT_PROVIDER_DB_URL
   }
 

src/main/presenter/windowPresenter/index.ts

@@ -1313,6 +1313,8 @@ export class WindowPresenter implements IWindowPresenter {
       y: settingsWindowState.y,
       width: settingsWindowState.width,
       height: settingsWindowState.height,
+      minWidth: 900,
+      minHeight: 640,
       show: false,
       autoHideMenuBar: true,
       fullscreenable: false,

src/main/presenter/workspacePresenter/directoryReader.ts

@@ -71,63 +71,3 @@ export async function readDirectoryShallow(dirPath: string): Promise<WorkspaceFi
     return []
   }
 }
-
-/**
- * Recursively read directory structure (deprecated, use readDirectoryShallow for lazy loading)
- * @param dirPath Directory path
- * @param currentDepth Current depth
- * @param maxDepth Maximum depth
- */
-export async function readDirectoryTree(
-  dirPath: string,
-  currentDepth: number = 0,
-  maxDepth: number = 3
-): Promise<WorkspaceFileNode[]> {
-  // Boundary check: depth limit
-  if (currentDepth >= maxDepth) {
-    return []
-  }
-
-  try {
-    const entries = await fs.readdir(dirPath, { withFileTypes: true })
-    const nodes: WorkspaceFileNode[] = []
-
-    for (const entry of entries) {
-      // Skip ignored files/directories
-      if (IGNORED_PATTERNS.includes(entry.name)) {
-        continue
-      }
-
-      // Skip hidden files (starting with .)
-      if (entry.name.startsWith('.')) {
-        continue
-      }
-
-      const fullPath = path.join(dirPath, entry.name)
-      const node: WorkspaceFileNode = {
-        name: entry.name,
-        path: fullPath,
-        isDirectory: entry.isDirectory()
-      }
-
-      // Recursively read subdirectories
-      if (entry.isDirectory()) {
-        node.children = await readDirectoryTree(fullPath, currentDepth + 1, maxDepth)
-        node.expanded = false // Default collapsed
-      }
-
-      nodes.push(node)
-    }
-
-    // Sort: directories first, files second, same type sorted by name
-    return nodes.sort((a, b) => {
-      if (a.isDirectory !== b.isDirectory) {
-        return a.isDirectory ? -1 : 1
-      }
-      return a.name.localeCompare(b.name)
-    })
-  } catch (error) {
-    console.error(`[Workspace] Failed to read directory ${dirPath}:`, error)
-    return []
-  }
-}