Extract adapter registry across CLI, server, and UI

Refactor monolithic heartbeat service, AgentConfigForm, and CLI
heartbeat-run into a proper adapter registry pattern. Each adapter
type (process, claude-local, codex-local, http) gets its own module
with server-side execution logic, CLI invocation, and UI config form.
Significantly reduces file sizes and enables adding new adapters
without touching core code.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ui/src/adapters/claude-local/config-fields.tsx

@@ -0,0 +1,78 @@
+import type { AdapterConfigFieldsProps } from "../types";
+import {
+  Field,
+  ToggleField,
+  DraftInput,
+  DraftNumberInput,
+  help,
+} from "../../components/agent-config-primitives";
+
+const inputClass =
+  "w-full rounded-md border border-border px-2.5 py-1.5 bg-transparent outline-none text-sm font-mono placeholder:text-muted-foreground/40";
+
+export function ClaudeLocalConfigFields({
+  isCreate,
+  values,
+  set,
+  config,
+  eff,
+  mark,
+}: AdapterConfigFieldsProps) {
+  return (
+    <>
+      <ToggleField
+        label="Skip permissions"
+        hint={help.dangerouslySkipPermissions}
+        checked={
+          isCreate
+            ? values!.dangerouslySkipPermissions
+            : eff(
+                "adapterConfig",
+                "dangerouslySkipPermissions",
+                config.dangerouslySkipPermissions !== false,
+              )
+        }
+        onChange={(v) =>
+          isCreate
+            ? set!({ dangerouslySkipPermissions: v })
+            : mark("adapterConfig", "dangerouslySkipPermissions", v)
+        }
+      />
+
+      {/* Max turns — only shown in advanced section context, rendered here for availability */}
+    </>
+  );
+}
+
+export function ClaudeLocalAdvancedFields({
+  isCreate,
+  values,
+  set,
+  config,
+  eff,
+  mark,
+}: AdapterConfigFieldsProps) {
+  return (
+    <Field label="Max turns per run" hint={help.maxTurnsPerRun}>
+      {isCreate ? (
+        <input
+          type="number"
+          className={inputClass}
+          value={values!.maxTurnsPerRun}
+          onChange={(e) => set!({ maxTurnsPerRun: Number(e.target.value) })}
+        />
+      ) : (
+        <DraftNumberInput
+          value={eff(
+            "adapterConfig",
+            "maxTurnsPerRun",
+            Number(config.maxTurnsPerRun ?? 80),
+          )}
+          onCommit={(v) => mark("adapterConfig", "maxTurnsPerRun", v || 80)}
+          immediate
+          className={inputClass}
+        />
+      )}
+    </Field>
+  );
+}