docs(landing): add Jam bug hunt blog post

[siisee11]

One-Line Summary

Adds a practical guide for turning autonomous browser QA findings into verified Jam evidence, bounded OneQuery diagnostics, and actionable Linear handoffs.

User-Facing Changes

• Adds the new “Hunting web bugs with Jam and agents” post to the OneQuery blog.
• Explains the reproduce-twice, duplicate-check, capture, Jam verification, and Linear Triage workflow used by the Jam bug-hunt agent skill.
• Documents the boundary between Jam CLI publishing and OneQuery’s approved read-only Jam MCP operations.
• Adds a thumbnail using the official OneQuery and Jam marks and a labeled workflow diagram following the landing brand guide.

Why This Changed

OneQuery supports Jam as a connected source, but the blog did not show how Jam evidence fits into an end-to-end agent QA workflow. Without that explanation, it was easy to conflate publishing a Jam with reading Jam diagnostics or to treat autonomous bug hunting as unverified screenshot collection.

How It Changed

• Adds an English MDX post under the Usecase category with concrete safety, reproduction, evidence, deduplication, and failure-preservation guidance.
• Names the currently approved Jam diagnostics exposed through OneQuery and explicitly notes that comments, updates, and screenshot binary retrieval remain unavailable.
• Uses the existing 1254×1254 integration-thumbnail composition with the official hosted Jam logo.
• Uses a 1774×887 monochrome technical diagram with directly labeled states, transitions, boundaries, and non-happy paths.
• Updates image alt text so the diagram remains understandable alongside the nearby textual workflow summary.

Extra Context / Decisions (Optional)

• The Jam logo is the official asset already referenced by the shared JamIcon; it was not redrawn by an image model.
• The workflow visual is code-rendered to follow the diagram guide’s monochrome, labeled, grayscale-readable style.

Verification

• bun run format
• bun run --cwd apps/landing typecheck
• bun run landing:build
• git diff --check
• Confirmed the generated article route: /blog/hunting-web-bugs-with-jam-and-agents/
• Confirmed thumbnail dimensions: 1254×1254
• Confirmed workflow diagram dimensions: 1774×887

Video / Screenshot (Optional)

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
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