Harden shared CI against transient failures

[sjmiller609]

summary

• retry SDK lint validation after transient dependency-download failures
• derive test bridge names from uniquely leased subnets to prevent cross-process bridge collisions without reducing parallelism

tests

• go test ./lib/instances -run ^TestBridgeNameForTestSubnet$ -count=1
• git diff --check

[github-actions]

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✱ stlc build

✅ go code · compare

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generate ✅ → bootstrap ✅ → format ✅

116 files generated at 2ee5c4a (pushed)

go get github.com/kernel/hypeman-go-staging@2ee5c4a2f6a85a453de9e6fc4f57c6fd955b0a6e

✅ python code · compare

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generate ✅ → bootstrap ✅ → format ✅

230 files generated at 092229c (pushed)

✅ typescript code · compare

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generate ✅ → bootstrap ✅ → format ✅

138 files generated at b463ecc (pushed)

Diagnostics: ❗ 0 new / 1 total error, 💡 0 new / 5 total note

Level	Code	Message	Targets

Build metadata

Build	bd_76BKvGHt-distant-claw
Timestamp	2026-08-20T23:33:09.055Z
stlc	8413509
Spec hash	3958e4a2d109
Config hash	55e15f6f4434

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Last updated: 2026-08-20 23:33:41 UTC