feat(aircoding): AirCoding V2 baseline — deterministic multi-agent architecture

Forked from OpenCode v1.17.4 with multi-agent system:
- 5 agents: aircoding, scheduler, worker, architect, reviewer
- Deterministic DAG scheduling engine (coordinator_tick)
- Tool whitelists as hard enforcement
- AirCoding validation plugin
- V1 requirements: C4 docs, ADR, AGENTS.md, debug-log.md
- Design documents in docs/

packages/tui/src/component/error-component.tsx

@@ -0,0 +1,79 @@
+import { TextAttributes } from "@opentui/core"
+import { useKeyboard, useTerminalDimensions } from "@opentui/solid"
+import { createSignal } from "solid-js"
+import { getScrollAcceleration } from "../util/scroll"
+import { useClipboard } from "../context/clipboard"
+import { InstallationVersion } from "@opencode-ai/core/installation/version"
+import { useExit } from "../context/exit"
+
+export function ErrorComponent(props: { error: Error; reset: () => void; mode?: "dark" | "light" }) {
+  const term = useTerminalDimensions()
+  const exit = useExit()
+  const clipboard = useClipboard()
+
+  useKeyboard((evt) => {
+    if (evt.ctrl && evt.name === "c") {
+      void exit()
+    }
+  })
+  const [copied, setCopied] = createSignal(false)
+
+  const issueURL = new URL("https://github.com/anomalyco/opencode/issues/new?template=bug-report.yml")
+
+  // Choose safe fallback colors per mode since theme context may not be available
+  const isLight = props.mode === "light"
+  const colors = {
+    bg: isLight ? "#ffffff" : "#0a0a0a",
+    text: isLight ? "#1a1a1a" : "#eeeeee",
+    muted: isLight ? "#8a8a8a" : "#808080",
+    primary: isLight ? "#3b7dd8" : "#fab283",
+  }
+
+  if (props.error.message) {
+    issueURL.searchParams.set("title", `opentui: fatal: ${props.error.message}`)
+  }
+
+  if (props.error.stack) {
+    issueURL.searchParams.set(
+      "description",
+      "```\n" + props.error.stack.substring(0, 6000 - issueURL.toString().length) + "...\n```",
+    )
+  }
+
+  issueURL.searchParams.set("opencode-version", InstallationVersion)
+
+  const copyIssueURL = () => {
+    void clipboard.write?.(issueURL.toString()).then(() => {
+      setCopied(true)
+    })
+  }
+
+  return (
+    <box flexDirection="column" gap={1} backgroundColor={colors.bg}>
+      <box flexDirection="row" gap={1} alignItems="center">
+        <text attributes={TextAttributes.BOLD} fg={colors.text}>
+          Please report an issue.
+        </text>
+        <box onMouseUp={copyIssueURL} backgroundColor={colors.primary} padding={1}>
+          <text attributes={TextAttributes.BOLD} fg={colors.bg}>
+            Copy issue URL (exception info pre-filled)
+          </text>
+        </box>
+        {copied() && <text fg={colors.muted}>Successfully copied</text>}
+      </box>
+      <box flexDirection="row" gap={2} alignItems="center">
+        <text fg={colors.text}>A fatal error occurred!</text>
+        <box onMouseUp={props.reset} backgroundColor={colors.primary} padding={1}>
+          <text fg={colors.bg}>Reset TUI</text>
+        </box>
+        <box onMouseUp={() => void exit()} backgroundColor={colors.primary} padding={1}>
+          <text fg={colors.bg}>Exit</text>
+        </box>
+      </box>
+      <scrollbox height={Math.floor(term().height * 0.7)} scrollAcceleration={getScrollAcceleration()}>
+        <text fg={colors.muted}>{props.error.stack}</text>
+      </scrollbox>
+      <text fg={colors.text}>{props.error.message}</text>
+    </box>
+  )
+}