Fix configurable visual recap runner shell

.changeset/friendly-runners-use-bash.md

@@ -0,0 +1,6 @@
+---
+"@agent-native/core": patch
+"@agent-native/recap-cli": patch
+---
+
+Run configurable PR Visual Recap jobs with Bash on every runner platform.

.github/workflows/pr-visual-recap-reusable.yml

@@ -331,6 +331,9 @@ jobs:
     if: needs.gate.outputs.run == 'true'
     runs-on: ${{ fromJSON(needs.gate.outputs.runs_on) }}
     timeout-minutes: 30
+    defaults:
+      run:
+        shell: bash
     permissions:
       actions: write
       checks: write

.github/workflows/pr-visual-recap.yml

@@ -233,6 +233,9 @@ jobs:
     if: needs.gate.outputs.run == 'true'
     runs-on: ${{ fromJSON(needs.gate.outputs.runs_on) }}
     timeout-minutes: 30
+    defaults:
+      run:
+        shell: bash
     permissions:
       actions: write
       checks: write

packages/core/src/cli/recap.spec.ts

@@ -2726,6 +2726,9 @@ describe("bundled PR visual recap workflow", () => {
     expect(PR_VISUAL_RECAP_WORKFLOW_YML).toContain(
       "runs-on: ${{ fromJSON(needs.gate.outputs.runs_on) }}",
     );
+    expect(PR_VISUAL_RECAP_WORKFLOW_YML).toContain(
+      "    defaults:\n      run:\n        shell: bash",
+    );
     expect(PR_VISUAL_RECAP_WORKFLOW_YML).toContain(
       "core.setOutput('runs_on', JSON.stringify(configuredRunner))",
     );
@@ -3267,6 +3270,7 @@ describe("reusable workflow file structure", () => {
     expect(content).toContain(
       "runs-on: ${{ fromJSON(needs.gate.outputs.runs_on) }}",
     );
+    expect(content).toContain("    defaults:\n      run:\n        shell: bash");
     expect(content).toContain(
       "core.setOutput('runs_on', JSON.stringify(configuredRunner))",
     );

packages/recap-cli/src/pr-visual-recap-workflow.spec.ts

@@ -0,0 +1,29 @@
+import { readFileSync } from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+import { describe, expect, it } from "vitest";
+
+import { PR_VISUAL_RECAP_WORKFLOW_YML } from "./pr-visual-recap-workflow.js";
+
+const repoRoot = path.resolve(
+  path.dirname(fileURLToPath(import.meta.url)),
+  "../../..",
+);
+
+describe("the recap installer workflow", () => {
+  it("keeps Bash semantics on configurable runners", () => {
+    expect(PR_VISUAL_RECAP_WORKFLOW_YML).toContain(
+      "    defaults:\n      run:\n        shell: bash",
+    );
+  });
+
+  it("bundles the canonical workflow byte for byte", () => {
+    const source = readFileSync(
+      path.join(repoRoot, ".github/workflows/pr-visual-recap.yml"),
+      "utf8",
+    );
+
+    expect(PR_VISUAL_RECAP_WORKFLOW_YML).toBe(source);
+  });
+});