fix: update workshop-playwright-qa to use /tmp/gh-aw/agent/ as temp root (#1899)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

Author: Copilot

.github/workflows/workshop-playwright-qa.lock.yml

@@ -46,7 +46,7 @@ steps:
   - name: Build workshop docs and start static server
     run: |
       set -euo pipefail
-      mkdir -p /tmp/gh-aw/data /tmp/gh-aw/screenshots
+      mkdir -p /tmp/gh-aw/agent/data /tmp/gh-aw/agent/screenshots
 
       # Install dependencies (same set as deploy-pages.yml)
       npm install --no-save marked github-slugger marked-alert \
@@ -57,7 +57,7 @@ steps:
 
       # Start a static HTTP server on port 4000
       npx --yes http-server dist -p 4000 --silent &
-      echo $! > /tmp/gh-aw/data/server.pid
+      echo $! > /tmp/gh-aw/agent/data/server.pid
 
       # Wait until the server responds (up to 20 s)
       timeout 20 bash -c \
@@ -87,13 +87,13 @@ steps:
               {"name": "desktop", "width": 1280, "height": 800},
           ],
       }
-      pathlib.Path("/tmp/gh-aw/data/config.json").write_text(
+      pathlib.Path("/tmp/gh-aw/agent/data/config.json").write_text(
           json.dumps(out, indent=2), encoding="utf-8"
       )
       print(f"Discovered {len(pages)} pages")
       PYEOF
 
-      echo "=== Config ===" && cat /tmp/gh-aw/data/config.json
+      echo "=== Config ===" && cat /tmp/gh-aw/agent/data/config.json
 ---
 
 # Workshop Playwright QA
@@ -108,7 +108,7 @@ screenshots.
 
 ## Load Inputs
 
-1. Read `/tmp/gh-aw/data/config.json`. It contains:
+1. Read `/tmp/gh-aw/agent/data/config.json`. It contains:
    - `base_url` — the local server URL (`http://127.0.0.1:4000/`)
    - `pages` — array of `{id, url}` objects, one per discovered workshop step
      plus a root entry
@@ -179,7 +179,7 @@ For every failed check, record a finding with:
 - `description` — a concise description of what failed and what was
   observed (include element selectors or text snippets where useful)
 - `screenshot_path` — path where a screenshot of the failure was saved
-  (use `/tmp/gh-aw/screenshots/<page_id>-<viewport>-<short-slug>.png`)
+  (use `/tmp/gh-aw/agent/screenshots/<page_id>-<viewport>-<short-slug>.png`)
 - `screenshot_asset_url` — GitHub asset URL returned by `upload_asset`
   after publishing the screenshot
 
@@ -255,6 +255,6 @@ Group findings by `page_id`. For each page that has findings:
 - Screenshots must be taken before moving to the next finding so the
   browser state is captured at the moment of failure.
 - Every issue or comment with findings must embed the uploaded screenshot
-  assets in Markdown, not local `/tmp/...` paths.
+  assets in Markdown, not local file paths.
 - Never call write tools other than `create-issue`, `add-comment`,
   `upload_asset`, and `noop`.