feat(console): add L1 upgrade JSON builder

[anishnar]

Summary

• add a console wizard for building Avalanche L1 upgrade.json files
• support precompile enable/disable, Warp config, balance/code state upgrades, snapshot persistence, RPC inspection, and self-hosted restart instructions
• wire managed-node apply/restart calls through the Builder Hub API

Verification

• corepack yarn prisma generate
• ./node_modules/.bin/vitest run tests/unit/console/upgrade-json.test.ts
• ./node_modules/.bin/tsc --noEmit
• git diff --check
• HTTP 200 checks for /console/layer-1/upgrade/select-l1 and /console/layer-1/upgrade/upgrade-json

Related

• Requires managed-node backend support in ava-labs/devrel-experiments#25

[vercel]

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Project	Deployment	Actions	Updated (UTC)
builder-hub	Ready	Preview, Comment	Jun 11, 2026 4:10pm