🎉 Initial commit: PiAgentUI — AI Agent Desktop & Web UI

A professional workspace for AI coding agents with:
- Real-time streaming chat with SSE
- Session management (fork, clone, tree navigation)
- MCP tools browser & metadata panel
- Skills browser (global, project, package sources)
- Voice input & STT provider configuration
- Integrated terminal & file explorer
- Model selector with capability metadata
- Keyboard-first UI with command palette
- 8 languages (en, pt-BR, es, ja, zh-CN, ar, bn, hi)
- Tauri 2 desktop app
- React 19 + TypeScript + Vite 8 + Tailwind CSS 4
- Pi Agent extension runtime

Originally forked from OpenCodeUI, now an independent project.
License: GPL-3.0-only

src/utils/clipboard.ts

@@ -0,0 +1,65 @@
+function fallbackCopyText(text: string): boolean {
+  if (typeof document === 'undefined' || !document.body) {
+    return false
+  }
+
+  const textArea = document.createElement('textarea')
+  textArea.value = text
+  textArea.setAttribute('readonly', '')
+  textArea.setAttribute('aria-hidden', 'true')
+  textArea.style.position = 'fixed'
+  textArea.style.top = '0'
+  textArea.style.left = '-9999px'
+  textArea.style.opacity = '0'
+  textArea.style.pointerEvents = 'none'
+
+  const selection = document.getSelection()
+  const savedRanges = selection
+    ? Array.from({ length: selection.rangeCount }, (_, index) => selection.getRangeAt(index).cloneRange())
+    : []
+  const activeElement = document.activeElement instanceof HTMLElement ? document.activeElement : null
+
+  document.body.appendChild(textArea)
+  textArea.focus()
+  textArea.select()
+  textArea.setSelectionRange(0, text.length)
+
+  const copied = typeof document.execCommand === 'function' && document.execCommand('copy')
+
+  document.body.removeChild(textArea)
+
+  if (selection) {
+    selection.removeAllRanges()
+    savedRanges.forEach(range => selection.addRange(range))
+  }
+  activeElement?.focus()
+
+  return copied
+}
+
+export async function copyTextToClipboard(text: string): Promise<void> {
+  let clipboardError: unknown
+
+  if (typeof navigator !== 'undefined' && navigator.clipboard?.writeText) {
+    try {
+      await navigator.clipboard.writeText(text)
+      return
+    } catch (error) {
+      clipboardError = error
+    }
+  }
+
+  if (fallbackCopyText(text)) {
+    return
+  }
+
+  throw clipboardError instanceof Error ? clipboardError : new Error('Failed to copy text to clipboard')
+}
+
+export async function readTextFromClipboard(): Promise<string> {
+  if (typeof navigator !== 'undefined' && navigator.clipboard?.readText) {
+    return navigator.clipboard.readText()
+  }
+
+  throw new Error('Clipboard read API is not available')
+}