[WIP] [ca] Update Playwright Browser to v1.58.2 and MCP Gateway to v0.0.109

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<issue_title>[ca] Update Playwright Browser to v1.58.2 and MCP Gateway to v0.0.109</issue_title>
<issue_description>Two CLI version updates are available for gh-aw agentic workflow dependencies.

Summary

• Playwright Browser: v1.58.1 → v1.58.2 (patch release with bug fixes)
• MCP Gateway: v0.0.103 → v0.0.109 (6 patch versions with new features and critical fixes)

Update Priority

Playwright Browser: Low - Minor bug fixes
MCP Gateway: High - Critical payload handling fixes and new configurability

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Playwright Browser Update

Version Information

• Current Version: v1.58.1
• Latest Version: v1.58.2
• Release Date: 2026-02-06
• Update Type: Patch release

Breaking Changes

None

Key Features

Minor bug fixes for trace viewer and Chromium on macOS

View Full Changelog

Release Highlights (from GitHub)

Bug Fixes:

• #39121 fix(trace viewer): make paths via stdin work
• #39129 fix: do not force swiftshader on chromium mac

Browser Versions:

• Chromium 145.0.7632.6
• Mozilla Firefox 146.0.1
• WebKit 26.0

Impact Assessment

• Risk: Low
• Affects: Playwright browser automation in workflows using the @playwright/mcp tool
• Migration Notes: Drop-in replacement, no configuration changes required

Recommendations

• Update Priority: Low - Can be bundled with next maintenance update
• Testing: Standard workflow tests should be sufficient
• Rollout: Safe to deploy immediately

Package Links

• Repository: https://github.com/microsoft/playwright
• Release Notes: https://github.com/microsoft/playwright/releases
• Specific Release: https://github.com/microsoft/playwright/releases/tag/v1.58.2
• Docker Image: mcr.microsoft.com/playwright:v1.58.2

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MCP Gateway Update

Version Information

• Current Version: v0.0.103
• Latest Version: v0.0.109
• Intermediate Versions: v0.0.104, v0.0.105, v0.0.106, v0.0.107, v0.0.108
• Release Timeline:
  • v0.0.104: 2026-02-06
  • v0.0.105: 2026-02-06
  • v0.0.107: 2026-02-06
  • v0.0.109: 2026-02-06 (latest)
• Update Type: Six patch releases in rapid succession

Breaking Changes

None - all changes are backward compatible

Key Features

v0.0.109 - Configurable Payload Size Threshold:

• New CLI flag --payload-size-threshold to control when tool responses are stored to disk vs. returned inline
• Environment variable MCP_GATEWAY_PAYLOAD_SIZE_THRESHOLD for configuration
• Config file option payload_size_threshold
• Default threshold: 1024 bytes
• Priority: CLI flag > Environment variable > Config file > Default
• Impact: Allows tuning memory usage and performance based on workload

v0.0.107 - Critical Payload Handling Fixes:

• Fixed large payload metadata not reaching clients (#773, #766)
• Fixed payload file permissions - now world-readable (0755 for directories, 0644 for files)
• Payload metadata (queryID, payloadPath, schema, preview) now properly included in CallToolResult.Content
• Agents can now access full payloads from mounted directories

v0.0.105 - Large Payload Testing & Enhanced Logging:

• Comprehensive agentic workflow to validate large payload storage (#730)
• Enhanced payload middleware logging with size info in multiple units
• Tests verify MCP Gateway stores large responses to /tmp/jq-payloads/{sessionID}/{queryID}/payload.json
• Validates agents can access payloads through volume mounts at /workspace/mcp-payloads/

View Full Changelog

v0.0.104

Large Payload Testing Infrastructure:

• #730 Add agentic workflow to test large payload storage and agent access
• #731 Fix MCP Gateway mount propagation in large-payload-tester workflow
• #733 Fix large payload tester mount isolation - remove test data from gateway
• #735 Fix large-payload-tester: add missing test data mount to MCP gateway
• #764 Fix large-payload-tester agent prompt numbering and grammar

Payload Middleware Improvements:

• #766 Fix large payload middleware: populate CallToolResult.Content field and add extensive logging

GitHub Agentic Workflows Updates:

• #752 updated aws
• #754 updated aw
• [Configure Astro Starlight with starlight-llms-txt extension #756](https://github.com...

• Fixes [ca] Update Playwright Browser to v1.58.2 and MCP Gateway to v0.0.109 #14328

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