feat: expand fuzz testing coverage across the Bridge codebase

[aarne]

• Introduced a comprehensive fuzz testing expansion plan in fuzz-expansion.md, outlining current coverage, identified gaps, and a prioritized implementation roadmap.
• Added new tests for deep-path AOT/runtime parity with chaotic inputs in fuzz-runtime-parity.test.ts, addressing critical gaps in testing.
• Implemented crash-proofing and bug fixes for arr.filter and arr.find in the stdlib, ensuring robust handling of non-array inputs.
• Created fuzz tests for parser functions in fuzz-parser.test.ts, ensuring resilience against invalid inputs and verifying serializer round-trip integrity.
• Enhanced array and string tools with additional guards against unexpected input types, returning undefined for non-conforming values.
• Updated package.json files to include fast-check as a devDependency across relevant packages.

[changeset-bot]

🦋 Changeset detected

Latest commit: 1020ff3

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 6 packages

Name	Type
@stackables/bridge-compiler	Patch
@stackables/bridge-core	Patch
@stackables/bridge-stdlib	Patch
@stackables/bridge	Patch
@stackables/bridge-graphql	Patch
@stackables/bridge-parser	Patch

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	bridge	1020ff3	Commit Preview URL Branch Preview URL	Mar 06 2026, 11:35 AM

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Bencher Report

Branch	fuzzmore
Testbed	ubuntu-latest

Click to view all benchmark results

Benchmark	Latency	Benchmark Result nanoseconds (ns) (Result Δ%)	Upper Boundary nanoseconds (ns) (Limit %)
compiled: absolute baseline (passthrough, no tools)	📈 view plot 🚷 view threshold	0.00 ns (-0.09%) Baseline: 0.00 ns	0.00 ns (92.80%)
compiled: array + tool-per-element 10	📈 view plot 🚷 view threshold	0.01 ns (-0.15%) Baseline: 0.01 ns	0.01 ns (94.46%)
compiled: array + tool-per-element 100	📈 view plot 🚷 view threshold	0.03 ns (-3.63%) Baseline: 0.03 ns	0.04 ns (91.05%)
compiled: chained 3-tool fan-out	📈 view plot 🚷 view threshold	0.00 ns (-0.89%) Baseline: 0.00 ns	0.00 ns (93.19%)
compiled: flat array 10 items	📈 view plot 🚷 view threshold	0.01 ns (+2.40%) Baseline: 0.01 ns	0.01 ns (96.46%)
compiled: flat array 100 items	📈 view plot 🚷 view threshold	0.01 ns (+0.67%) Baseline: 0.01 ns	0.01 ns (95.78%)
compiled: flat array 1000 items	📈 view plot 🚷 view threshold	0.07 ns (+0.53%) Baseline: 0.07 ns	0.07 ns (96.30%)
compiled: nested array 10x10	📈 view plot 🚷 view threshold	0.02 ns (-0.76%) Baseline: 0.02 ns	0.02 ns (94.23%)
compiled: nested array 20x10	📈 view plot 🚷 view threshold	0.03 ns (-1.12%) Baseline: 0.03 ns	0.03 ns (94.29%)
compiled: nested array 5x5	📈 view plot 🚷 view threshold	0.01 ns (-0.42%) Baseline: 0.01 ns	0.01 ns (94.48%)
compiled: short-circuit (overdefinition bypass)	📈 view plot 🚷 view threshold	0.00 ns (-0.13%) Baseline: 0.00 ns	0.00 ns (92.96%)
compiled: simple chain (1 tool)	📈 view plot 🚷 view threshold	0.00 ns (+0.10%) Baseline: 0.00 ns	0.00 ns (93.15%)
exec: absolute baseline (passthrough, no tools)	📈 view plot 🚷 view threshold	0.00 ns (+4.85%) Baseline: 0.00 ns	0.00 ns (86.10%)
exec: array + tool-per-element 10	📈 view plot 🚷 view threshold	0.08 ns (+1.63%) Baseline: 0.08 ns	0.10 ns (77.56%)
exec: array + tool-per-element 100	📈 view plot 🚷 view threshold	0.69 ns (+1.40%) Baseline: 0.68 ns	0.91 ns (75.36%)
exec: chained 3-tool fan-out	📈 view plot 🚷 view threshold	0.02 ns (+13.44%) Baseline: 0.01 ns	0.02 ns (84.44%)
exec: flat array 10 items	📈 view plot 🚷 view threshold	0.01 ns (-5.88%) Baseline: 0.02 ns	0.03 ns (42.91%)
exec: flat array 100 items	📈 view plot 🚷 view threshold	0.07 ns (-20.89%) Baseline: 0.09 ns	0.30 ns (24.85%)
exec: flat array 1000 items	📈 view plot 🚷 view threshold	0.67 ns (-28.93%) Baseline: 0.94 ns	3.63 ns (18.47%)
exec: nested array 10x10	📈 view plot 🚷 view threshold	0.12 ns (-14.23%) Baseline: 0.14 ns	0.37 ns (33.27%)
exec: nested array 20x10	📈 view plot 🚷 view threshold	0.24 ns (-14.69%) Baseline: 0.28 ns	0.75 ns (31.89%)
exec: nested array 5x5	📈 view plot 🚷 view threshold	0.05 ns (-7.78%) Baseline: 0.05 ns	0.10 ns (45.87%)
exec: short-circuit (overdefinition bypass)	📈 view plot 🚷 view threshold	0.00 ns (+6.69%) Baseline: 0.00 ns	0.00 ns (94.02%)
exec: simple chain (1 tool)	📈 view plot 🚷 view threshold	0.01 ns (+14.63%) Baseline: 0.01 ns	0.01 ns (88.92%)
parse: large bridge (20 handles x 5 wires)	📈 view plot 🚷 view threshold	1.12 ns (+12.28%) Baseline: 0.99 ns	1.36 ns (82.20%)
parse: simple bridge	📈 view plot 🚷 view threshold	0.04 ns (+25.32%) Baseline: 0.03 ns	0.05 ns (88.05%)

🐰 View full continuous benchmarking report in Bencher