feat(agent): support Responses steering and project-aware tools

Use the dedicated TJWATER_AGENT_URL and Responses stream protocol. Keep running
turns active while users steer or queue follow-ups and edit pending delivery.
Refresh the model catalog before generation and preserve approval mode selection.

Integrate scoped investigation messaging/presentation, geographic place selection,
current Agent composer styles and supporting workbench contracts.

Validation: 77 focused Vitest checks, 21 browser cases, lint, typecheck and
production build. Preserve direct Server/Agent routing and project authentication.

tests/browser/investigation-evidence-overflow.e2e.ts

@@ -0,0 +1,89 @@
+import { expect, test } from "@playwright/test";
+import type { OperationalTask } from "../../src/features/workbench/api/operational-task-client";
+
+const now = "2026-09-23T09:00:00Z";
+const sources = ["peripheral_test_data", "scada_devices", "workbench_runtime", "scada_readings", "work_orders", "other_saved_data"];
+const sourceRef = (source: string) => `${source}:sha256:${"7d5852b69d8e3d4e127800882683c3319e58".repeat(2)}`;
+const snapshotKey = "query_scope_with_a_long_unbroken_field_name";
+
+const task: OperationalTask = {
+  project_id: "11111111-1111-4111-8111-111111111111",
+  task_id: "22222222-2222-4222-8222-222222222222",
+  task_type: "event_investigation", workflow: "water_quality_complaint",
+  lifecycle_status: "completed", active_run: null, status: "completed", priority: "normal",
+  revision: 1, execution_generation: 1, execution_request_id: null,
+  title: "水质投诉调查", summary: "居民反映异味",
+  source: { kind: "operator", external_id: null, external_revision: null, event_kind: "water_quality_complaint" },
+  trigger: { kind: "manual", occurred_at: now, detail: "演示小区" }, scheduled_for: null,
+  agent_session_id: null, agent_lease_expires_at: null, current_plan_revision: null, current_report_revision: 1,
+  created_at: now, updated_at: now, latest_plan: null,
+  latest_report: {
+    revision: 1, execution_generation: 1, source_session_id: "evidence-layout-session", published_at: now, published_by: "agent",
+    report: {
+      title: "调查报告", current_conclusion: "需现场核查用户端。", conclusion_boundary: "仅覆盖已有记录。",
+      evidence_refs: sources.slice(0, 5), recommendations: [], pending_items: [],
+      stage: "final", outcome: "concluded", stop_reason: null, data_gaps: []
+    }
+  },
+  evidence: sources.map((source) => ({
+    evidence_id: source, kind: "system_data", summary: `${source} 数据快照`, source_label: source,
+    source_ref: sourceRef(source), observed_at: now, recorded_at: now, recorded_by: "agent", has_snapshot: true
+  })),
+  actions: [], access_requests: [], work_order_snapshot: null,
+  permissions: {
+    can_publish_artifacts: false, can_propose_actions: false, can_sync_external_feedback: false,
+    can_decide_work_orders: false, can_execute_work_orders: false, can_decide_commands: false,
+    can_execute_commands: false, can_decide_access: false
+  }
+};
+
+test("调查证据与数据快照的长引用在桌面和窄屏完整换行", async ({ page }, testInfo) => {
+  await page.route("http://127.0.0.1:8787/api/v1/**", (route) => route.fulfill({ json: { items: [] } }));
+  await page.goto("/", { waitUntil: "domcontentloaded" });
+  await page.setContent('<html lang="zh-CN"><head><link rel="stylesheet" href="/src/styles.css"></head><body><main id="report" style="max-width:480px;margin:auto;padding:16px"></main></body></html>');
+  await page.evaluate(async ({ task, snapshotKey }) => {
+    const reactModule = await import("/node_modules/.vite/deps/react.js");
+    const React = reactModule.default ?? reactModule;
+    const clientModule = await import("/node_modules/.vite/deps/react-dom_client.js");
+    const { createRoot } = clientModule.default ?? clientModule;
+    const { AgentExecutionPlanPanel } = await import("/src/features/workbench/components/agent-execution-plan-panel.tsx");
+    const noop = async () => undefined;
+    createRoot(document.getElementById("report")).render(React.createElement(AgentExecutionPlanPanel, {
+      task, onContinue: noop, onDecision: noop, onExecute: noop, onReconcile: noop, onRefresh: noop,
+      onLoadEvidenceSnapshot: async (evidenceId: string) => ({
+        source: "workbench_runtime", origin: "system_data",
+        source_ref: task.evidence.find((item) => item.evidence_id === evidenceId)!.source_ref,
+        queried_at: task.updated_at, truncated: false, data: { [snapshotKey]: "long_snapshot_value_".repeat(8) }
+      })
+    }));
+  }, { task, snapshotKey });
+  const evidence = page.getByRole("region", { name: "主要依据", exact: true });
+  await expect(evidence).toBeVisible();
+  for (const name of ["更多引用依据 · 2 条", "其他已保存资料"]) {
+    const summary = evidence.locator("summary").filter({ hasText: name });
+    await summary.focus();
+    await page.keyboard.press("Enter");
+    await expect(summary.locator("..")).toHaveAttribute("open", "");
+  }
+  for (const source of sources) {
+    const card = evidence.locator("details").filter({ has: page.locator("summary", { hasText: `${source} 数据快照` }) }).last();
+    await card.locator("summary").first().click();
+    await expect(card.locator("dd.font-mono")).toHaveText(sourceRef(source));
+    await card.getByRole("button", { name: "查看数据快照", exact: true }).click();
+    await expect(card.getByRole("region", { name: "数据快照" })).toContainText(snapshotKey);
+  }
+  for (const width of [1440, 705, 375, 320]) {
+    await page.setViewportSize({ width, height: 900 });
+    const overflow = await evidence.evaluate((section) => {
+      return [...section.querySelectorAll("dd, dt, [aria-label='数据快照'] p")].flatMap((element) => {
+        const rect = element.getBoundingClientRect();
+        const card = element.closest("details")!.getBoundingClientRect();
+        return element.scrollWidth > element.clientWidth + 1 || rect.right > card.right + 1 || rect.left < card.left - 1
+          ? [{ text: element.textContent, width: element.clientWidth, scrollWidth: element.scrollWidth, right: rect.right, cardRight: card.right }]
+          : [];
+      });
+    });
+    expect(overflow, `证据字段在 ${width}px 下不应撑出卡片`).toEqual([]);
+    await evidence.screenshot({ path: testInfo.outputPath(`evidence-${width}.png`) });
+  }
+});