feat(i18n): complete V2 translation coverage

packages/app/AGENTS.md

@@ -33,6 +33,7 @@
 - When migrating existing copy to i18n, preserve the English text byte-for-byte unless the task explicitly requests a copy change.
 - NEVER change existing English text or English keys to facilitate translation. English is intentional, designer-written source copy; adapt locale-specific translations and i18n mechanics around it.
 - Keep locale complexity behind the shared typed i18n APIs. Feature and component code should use `language.t(...)` for ordinary copy and `language.plural(baseKey, count, params)` for count-sensitive copy. It must not inspect the locale, call `Intl.PluralRules`, construct or select plural-category keys such as `.one` or `.other`, or branch on locale-specific grammar.
+- Do not compose translated count phrases or sentence fragments in feature components. Add a focused language-context operation that owns plural selection and composition when one UI concept needs coordinated keys.
 - Prefer complete translated phrases. Do not concatenate grammatical fragments or make call sites assemble sentences. Keep placeholders to irreducible dynamic values such as names, paths, and counts.
 - If a translation cannot be expressed by the current API, deepen the shared language/UI i18n module so one typed call owns locale selection, plural resolution, fallback, and interpolation. Do not leak that machinery into product code.
 - Do not translate from model knowledge alone. Verify terminology and grammar with Unicode CLDR locale/plural data, Microsoft Localization Style Guides and terminology, Apple localization/style guidance and localized platform UI, Mozilla localization style guides, Mozilla Pontoon, and the Firefox localization corpus at `github.com/mozilla-l10n/firefox-l10n`.

packages/app/src/new-session/workspace/selector.tsx

@@ -194,9 +194,7 @@ export function PromptWorkspaceSelector(props: {
                     }}
                   >
                     <Icon name="outline-worktree" />
-                    <span class="min-w-0 flex-1 truncate">
-                      {language.t("session.new.workspace.existing").replace(/(…|\.{3})$/, "")}
-                    </span>
+                    <span class="min-w-0 flex-1 truncate">{language.t("session.new.workspace.existingLabel")}</span>
                   </Menu.SubTrigger>
                   <Menu.Portal>
                     <Menu.SubContent class="max-h-[66.667dvh] w-[200px] overflow-y-auto !pb-0 [&>[data-component=menu-v2-item]:last-child]:mb-0.5 [@media(max-height:600px)]:max-h-[calc(100dvh-48px)]">

packages/app/src/providers/connect/controller.ts

@@ -175,7 +175,7 @@ export function createProviderConnectionController(options: {
     }
     if (selected.type !== "oauth") return
     if (selected.form?.some((field) => field.type !== "string")) {
-      dispatch({ type: "auth.error", error: "This authentication form contains unsupported fields" })
+      dispatch({ type: "auth.error", error: language.t("provider.connect.error.unsupportedFields") })
       return
     }
     dispatch({ type: "auth.pending" })

packages/app/src/runtime/i18n/desktop-native.ts

@@ -306,6 +306,7 @@ export const DESKTOP_NATIVE_ENGLISH = {
   "desktop.dialog.saveFile": "Save file",
   "desktop.dialog.files": "Files",
   "desktop.server.local": "Local Server",
+  "desktop.onboarding.defaultProject": "Default Project",
 
   "desktop.wsl.error.windowsOnly": "WSL is only available on Windows",
   "desktop.wsl.error.unavailable": "WSL is unavailable",

packages/app/src/runtime/i18n/en.ts

@@ -198,6 +198,7 @@ export const dict = {
   "provider.connect.status.inProgress": "Authorization in progress…",
   "provider.connect.status.waiting": "Waiting for authorization…",
   "provider.connect.status.failed": "Authorization failed: {{error}}",
+  "provider.connect.error.unsupportedFields": "This authentication form contains unsupported fields",
   "provider.connect.apiKey.description":
     "Enter your {{provider}} API key to connect your account and use {{provider}} models in OpenCode.",
   "provider.connect.apiKey.label": "{{provider}} API key",
@@ -266,6 +267,8 @@ export const dict = {
 
   "provider.disconnect.toast.disconnected.title": "{{provider}} disconnected",
   "provider.disconnect.toast.disconnected.description": "{{provider}} models are no longer available.",
+  "provider.disconnect.toast.noCredentials.description": "No removable credentials found for {{provider}}.",
+  "provider.disconnect.toast.failed.description": "Failed to disconnect {{provider}}.",
 
   "model.tag.free": "Free",
   "model.tag.latest": "Latest",
@@ -296,6 +299,15 @@ export const dict = {
   "common.loading.ellipsis": "…",
   "common.cancel": "Cancel",
   "common.clear": "Clear",
+  "common.color.orange": "orange",
+  "common.color.yellow": "yellow",
+  "common.color.cyan": "cyan",
+  "common.color.green": "green",
+  "common.color.red": "red",
+  "common.color.pink": "pink",
+  "common.color.blue": "blue",
+  "common.color.purple": "purple",
+  "common.color.gray": "gray",
   "common.open": "Open",
   "common.connect": "Connect",
   "common.disconnect": "Disconnect",
@@ -643,6 +655,13 @@ export const dict = {
   "toast.session.listFailed.title": "Failed to load sessions for {{project}}",
   "toast.project.reloadFailed.title": "Failed to reload {{project}}",
   "toast.migration.failed.title": "Data migration failed",
+  "toast.migration.progress.clearingOldEvents": "Clearing old events",
+  "toast.migration.progress.migratingSessions": "Migrating sessions",
+  "toast.migration.progress.migratingSessions.current": "Migrating sessions {{current}}",
+  "toast.migration.progress.migratingSessions.progress": "Migrating sessions {{current}}/{{total}}",
+  "toast.migration.progress.working": "Migrating data",
+  "toast.migration.progress.working.current": "Migrating data {{current}}",
+  "toast.migration.progress.working.progress": "Migrating data {{current}}/{{total}}",
 
   "toast.update.title": "Update available",
   "toast.update.description": "A new version of OpenCode ({{version}}) is now available to install.",
@@ -781,6 +800,8 @@ export const dict = {
   "session.timeline.notice.cancelled": "{{actor}} cancelled",
   "session.error.serverConnection": "Can't connect to this server",
   "session.review.filesChanged": "Files Changed {{count}}",
+  "session.review.filesChangedCount.one": "{{count}} file changed",
+  "session.review.filesChangedCount.other": "{{count}} files changed",
   "session.review.change.one": "Change",
   "session.review.change.other": "Changes",
   "session.review.loadingChanges": "Loading changes…",
@@ -841,6 +862,7 @@ export const dict = {
   "session.new.workspace.triggerLocal": "Local",
   "session.new.workspace.local": "Local repository",
   "session.new.workspace.existing": "Worktree…",
+  "session.new.workspace.existingLabel": "Worktree",
   "session.new.git.none": "No Git",
   "session.new.lastModified": "Last modified",
 
@@ -901,6 +923,7 @@ export const dict = {
 
   "session.browser.address": "Browser address",
   "session.browser.replaced": "Browser control moved to another desktop window.",
+  "session.browser.unsupported": "This desktop app does not support the browser pane.",
   "session.browser.suspended": "Browser suspended. Interact with this session to reconnect.",
   "session.browser.address.placeholder": "Enter URL",
 
@@ -1029,6 +1052,8 @@ export const dict = {
   "settings.about.writtenBy": "Written by",
   "settings.about.illustratedBy": "Illustrated by",
   "settings.about.and": "and",
+  "settings.about.writtenByNames": "Written by {{names}}",
+  "settings.about.illustratedByNames": "Illustrated by {{names}}",
   "settings.about.otherContributor.one": "{{count}} other",
   "settings.about.otherContributor.other": "{{count}} others",
   "settings.about.firstPublished": "First published in Missouri, USA",