Bump typeberry long-running fuzz to 100k blocks per spec

[tomusdrw]

Summary

• Increase typeberry long-running fuzz to num_blocks: 100000 for both tiny and full specs.
• Drop num_runs from 9 to 1 (single straight pass per spec instead of repeated source restarts).
• Raise timeout_minutes from 30 to 1380 (23h), matching the precedent in turbojam-fuzz.yml.

Test plan

• Manual workflow_dispatch run on tiny completes within the new timeout.
• Manual workflow_dispatch run on full completes within the new timeout (this one is the risk — full was previously ~10× slower per block).

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Updated fuzz testing workflow configuration parameters to optimize testing execution and coverage.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: b1de5303-b3de-458e-80e4-221bbca144f1

📥 Commits

Reviewing files that changed from the base of the PR and between 2b7b508 and ca2e248.

📒 Files selected for processing (1)

• .github/workflows/typeberry-fuzz.yml

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📝 Walkthrough

Walkthrough

The typeberry-fuzz GitHub Actions workflow is updated to standardize block load at 100,000 for both matrix specs and adjust execution timing: timeout is extended to 1,380 minutes (23 hours) and the run count is reduced to 1.

Changes

Typeberry Fuzz Configuration

Layer / File(s)	Summary
Fuzz test parameters and execution settings .github/workflows/typeberry-fuzz.yml	Matrix specs tiny and full are unified to num_blocks: 100000; fuzz runner timeout_minutes increases from 30 to 1380 and num_runs decreases from 9 to 1.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• FluffyLabs/jam-testing#74: Both PRs modify GitHub Actions workflow settings for fuzzing/demo runs with resource or execution parameter adjustments.
• FluffyLabs/jam-testing#9: The main PR's edits to typeberry-fuzz.yml configuration are directly related to PR #9's introduction of the Typeberry fuzz workflow itself.

Poem

🐰 A fuzzy quest through blocks of code,

One hundred thousand down the road,

With patience vast and runs made lean,

The longest timeout ever seen! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly and accurately summarizes the primary change: increasing typeberry fuzzing to 100k blocks per spec, matching the main code modification.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch td-fuzzing-100k-blocks

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