feat(i18n): translate five more systems

- Settings > Voice: video — preview, permission states, camera picker.
    This closes the Voice & Video tab; input, output and video are all done.
  - Create channel / category / space
  - Group DMs — new DM, add friends, group settings, leave
  - Join a space — discovery, invite code, and both federated auth phases
  - Delete account, transfer ownership, and the top-level error screen

Three patterns worth noting. Strings that are chosen in a helper or held in
state (the camera's hard-blocked copy, its preview errors, the space
visibility options, the invite failure reasons) now travel as translation
keys and are resolved where they render, so switching language re-labels
what is already on screen. Sentences that wrap an emphasised literal — the
host name when joining, the space and member names when transferring — are
split around their placeholder instead of interpolated, leaving word order
to the translation. And `CreateChannel` mapped over `(t) =>` for the channel
type, which shadowed the translator; the loop variable is now `channelType`.

The error boundary in main.tsx is a class component, so it reads the locale
once per render via `translate` rather than the hook — correct here anyway,
since an error screen has no reason to re-render on a language switch.

Two GroupDmSettings tests located the name input by its aria-label, which
this change translates. They now use the `data-group-dm-name-input`
attribute the input already carries, matching how the rest of that file
locates elements — and no longer break when copy changes.

Dictionary is at 595 keys, en and pt-BR at exact parity.

Verified: web build (tsc + vite), 490 web tests.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/web/src/i18n/locales/en.ts

@@ -492,6 +492,179 @@ export const en = {
   'explore.request.send': 'Send Request',
   'explore.request.sending': 'Sending...',
   'explore.request.cancel': 'Cancel',
+  // Settings — voice: video
+  'settings.video.title': 'Video',
+  'settings.video.checking': 'Checking camera access…',
+  'settings.video.needPermission': 'Grant camera permission to choose a camera.',
+  'settings.video.promptNeeded': 'Camera permission needed to choose a camera and preview.',
+  'settings.video.enablePreview': 'Enable camera preview',
+  'settings.video.tryAgain': 'Try again',
+  'settings.video.testCamera': 'Test camera',
+  'settings.video.stopPreview': 'Stop preview',
+  'settings.video.auto': 'Auto (system default)',
+  'settings.video.currentlyUsing': 'Currently using: {label}',
+  'settings.video.detectedCamera': 'detected camera',
+  'settings.video.noCameras': 'No cameras detected.',
+  'settings.video.error.inUse': 'Camera is in use by another application.',
+  'settings.video.error.unavailable': 'Selected camera is unavailable.',
+  'settings.video.error.notFound': 'No camera detected.',
+  'settings.video.error.generic': 'Could not start camera preview.',
+  'settings.video.blocked.mac': 'Grant camera access in System Settings → Privacy & Security → Camera, then restart the app.',
+  'settings.video.blocked.windows': 'Grant camera access in Settings → Privacy & Security → Camera, then restart the app.',
+  'settings.video.blocked.browser': 'Camera permission was denied. Reset it in your browser/Chromium prompt and try again.',
+
+  // Create channel / category / space
+  'create.cancel': 'Cancel',
+  'create.creating': 'Creating...',
+  'create.channel.title': 'Create Channel',
+  'create.channel.submit': 'Create Channel',
+  'create.channel.type': 'Channel Type',
+  'create.channel.type.text': 'Text',
+  'create.channel.type.voice': 'Voice',
+  'create.channel.type.text.description': 'Send messages, images, and files',
+  'create.channel.type.voice.description': 'Hang out with voice and video',
+  'create.channel.name': 'Channel Name',
+  'create.channel.name.placeholder': 'new-channel',
+  'create.channel.name.required': 'Channel name is required',
+  'create.channel.topic': 'Topic (optional)',
+  'create.channel.topic.placeholder': "What's this channel about?",
+  'create.channel.category': 'Category',
+  'create.channel.category.none': 'No Category',
+  'create.channel.failed': 'Failed to create channel',
+  'create.category.title': 'Create Category',
+  'create.category.submit': 'Create Category',
+  'create.category.name': 'Category Name',
+  'create.category.name.placeholder': 'new-category',
+  'create.category.name.required': 'Category name is required',
+  'create.category.failed': 'Failed to create category',
+  'create.noSpace': 'No space selected',
+  'create.space.title': 'Create a Space',
+  'create.space.submit': 'Create',
+  'create.space.upload': 'Upload',
+  'create.space.remove': 'Remove',
+  'create.space.iconColor': 'Icon Color',
+  'create.space.name': 'Space Name',
+  'create.space.name.placeholder': 'My Awesome Space',
+  'create.space.name.required': 'Space name is required',
+  'create.space.description': 'Description',
+  'create.space.description.placeholder': 'A short description for your space...',
+  'create.space.visibility': 'Visibility',
+  'create.space.visibility.private': 'Private',
+  'create.space.visibility.private.description': 'Only people with an invite link can join',
+  'create.space.visibility.request': 'Request to Join',
+  'create.space.visibility.request.description': 'Visible in Explore — people can request to join',
+  'create.space.visibility.public': 'Public',
+  'create.space.visibility.public.description': 'Visible in Explore — anyone can join instantly',
+  'create.space.iconFailed': 'Failed to upload icon',
+  'create.space.failed': 'Failed to create space',
+  'create.space.cropIcon': 'Crop Space Icon',
+
+  // Group DMs
+  'groupDm.newDm.title': 'New Direct Message',
+  'groupDm.newDm.search': 'Search for a user...',
+  'groupDm.newDm.failed': 'Failed to create DM',
+  'groupDm.add.title': 'Add Friends to DM',
+  'groupDm.add.search': 'Search friends...',
+  'groupDm.add.alreadyIn': 'Already in this DM',
+  'groupDm.add.noMatch': 'No friends match your search',
+  'groupDm.add.noFriends': 'No friends yet',
+  'groupDm.add.select': 'Select Friends',
+  'groupDm.add.submit': 'Add {count} Friend',
+  'groupDm.add.submitPlural': 'Add {count} Friends',
+  'groupDm.add.adding': 'Adding...',
+  'groupDm.add.failed': 'Failed to add members',
+  'groupDm.fallbackName': 'Group DM',
+  'groupDm.icon.change': 'Change group icon',
+  'groupDm.icon.label': 'Group icon',
+  'groupDm.icon.crop': 'Crop Group Icon',
+  'groupDm.name': 'Group Name',
+  'groupDm.tab.general': 'General',
+  'groupDm.tab.overview': 'Overview',
+  'groupDm.tab.members': 'Members',
+  'groupDm.back': 'Back to group DM settings menu',
+  'groupDm.save': 'Save',
+  'groupDm.saving': 'Saving...',
+  'groupDm.cancel': 'Cancel',
+  'groupDm.close': 'Close',
+  'groupDm.saveFailed': 'Failed to save settings',
+  'groupDm.members.title': 'Members',
+  'groupDm.members.add': 'Add Member',
+  'groupDm.members.full': 'Group is full',
+  'groupDm.leave': 'Leave Group',
+  'groupDm.leaving': 'Leaving...',
+  'groupDm.leave.description': 'You will stop receiving messages from this conversation. Other members will see a system message.',
+  'groupDm.leave.confirm': 'Leave "{name}"? You will stop receiving messages from this conversation.',
+  'groupDm.leave.button': 'Leave',
+  'groupDm.leave.failed': 'Failed to leave group',
+
+  // Join a space
+  'join.title': 'Join a Space',
+  'join.discover.lead': 'Discover spaces to join, or browse them all in Explore.',
+  'join.discover.error': 'Couldn’t load spaces to discover right now. You can still join with an invite code below.',
+  'join.discover.empty': 'No spaces to discover yet — try an invite code below, or check back later.',
+  'join.discover.browse': 'Browse all in Explore',
+  'join.haveCode': 'Have an invite code?',
+  'join.code.placeholder': 'e.g. abc123 or https://instance.com/join/abc123',
+  'join.cancel': 'Cancel',
+  'join.back': 'Back',
+  'join.submit': 'Join Space',
+  'join.joining': 'Joining...',
+  'join.failed': 'Failed to join space',
+  'join.connect.lead': 'Connect to {host} to join this space.',
+  'join.connect.password': 'Enter your password to connect',
+  'join.connect.password.placeholder': 'Your account password',
+  'join.connect.note': 'Your password is verified locally, then used to create or access your account on the remote instance.',
+  'join.connect.submit': 'Connect & Join',
+  'join.connect.connecting': 'Connecting...',
+  'join.fallback.lead': 'An account already exists on {host} with a different password. Enter the credentials you used on that instance.',
+  'join.fallback.username': 'Username',
+  'join.fallback.username.placeholder': 'Your username on this instance',
+  'join.fallback.password': 'Password for this instance',
+  'join.fallback.password.placeholder': 'Password on the remote instance',
+  'join.fallback.submit': 'Login & Join',
+  'join.fallback.loggingIn': 'Logging in...',
+
+  // Delete account / transfer ownership / error screen
+  'danger.delete.title': 'Delete Account',
+  'danger.delete.lead': 'This will permanently delete your account.',
+  'danger.delete.item.spaces': 'All space memberships will be removed',
+  'danger.delete.item.friends': 'All friend connections will be removed',
+  'danger.delete.item.dms': 'All DM memberships will be removed',
+  'danger.delete.item.messages': 'Your messages will remain but be attributed to "Deleted User"',
+  'danger.delete.owned': 'You own {count} space. Handle it before continuing:',
+  'danger.delete.ownedPlural': 'You own {count} spaces. Handle each before continuing:',
+  'danger.delete.transfer': 'Transfer',
+  'danger.delete.deleteSpace': 'Delete Space',
+  'danger.delete.selectOwner': 'Select new owner...',
+  'danger.delete.continue': 'Continue',
+  'danger.delete.processing': 'Processing...',
+  'danger.delete.spacesFailed': 'Failed to process spaces',
+  'danger.delete.permanent': 'This action is permanent and cannot be undone.',
+  'danger.delete.password': 'Password',
+  'danger.delete.password.placeholder': 'Enter your password',
+  'danger.delete.back': 'Back',
+  'danger.delete.confirm': 'Delete My Account',
+  'danger.delete.deleting': 'Deleting...',
+  'danger.delete.usernameMismatch': 'Username does not match',
+  'danger.delete.failed': 'Failed to delete account',
+  'danger.delete.federating': 'Removing your account from connected instances...',
+  'danger.delete.now': 'Delete Account Now',
+  'danger.delete.done': 'Account deleted',
+  'danger.delete.redirecting': 'Redirecting to login...',
+  'danger.transfer.title': 'Transfer Ownership',
+  'danger.transfer.lead': 'Choose a member to become the new owner of {space}',
+  'danger.transfer.confirm': 'Transfer ownership of {space} to {member}?',
+  'danger.transfer.note': 'You will become a regular member.',
+  'danger.transfer.search': 'Search members...',
+  'danger.transfer.loading': 'Loading members...',
+  'danger.transfer.empty': 'No members found',
+  'danger.transfer.cancel': 'Cancel',
+  'danger.transfer.submit': 'Transfer',
+  'danger.transfer.transferring': 'Transferring...',
+  'danger.transfer.failed': 'Failed to transfer ownership',
+  'error.title': 'Something went wrong',
+  'error.tryAgain': 'Try Again',
+  'error.reload': 'Reload Page',
 } as const;
 
 export type TranslationKey = keyof typeof en;