Use square repo badges

[nwparker]

Summary

• replace repo dot labels with square repo badge markers
• update repo badge call sites across sidebar, settings, task, automation, quick-command, and palette surfaces
• make project color swatches square in settings

Verification

• pnpm run typecheck:web
• pnpm exec oxlint src/renderer/src/components/repo/RepoBadgeLabel.tsx src/renderer/src/components/ui/repo-multi-combobox.tsx src/renderer/src/components/github/IssueSourceIndicator.tsx src/renderer/src/components/github/IssueSourceSelector.tsx src/renderer/src/components/settings/QuickCommandsPane.tsx src/renderer/src/components/automations/AutomationsPage.tsx src/renderer/src/components/repo/RepoCombobox.tsx src/renderer/src/components/sidebar/SidebarFilter.tsx src/renderer/src/components/TaskPage.tsx src/renderer/src/components/sidebar/SidebarRepositoryFilterSection.tsx src/renderer/src/components/terminal-quick-commands/TerminalQuickCommandDialog.tsx src/renderer/src/components/settings/SettingsSidebar.tsx src/renderer/src/components/WorktreeJumpPalette.tsx src/renderer/src/components/sidebar/WorktreeCard.tsx src/renderer/src/components/sidebar/WorktreeList.tsx src/renderer/src/components/sidebar/WorkspaceKanbanCard.tsx src/renderer/src/components/sidebar/SetupScriptPromptCard.tsx src/renderer/src/components/activity/ActivityPrototypePage.tsx src/renderer/src/components/settings/RepositoryIconPicker.tsx
• Electron visual check on square-bades dev build: sidebar repo badges and Settings > Project Settings > orca swatches render as filled squares