Upgrade to polkadot-sdk stable2512 - #3

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deblanco wants to merge 10 commits into

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claude/affectionate-ptolemy-xz5lyr

Commits on Jun 12, 2026

build: repoint workspace to polkadot-sdk stable2512 + frontier stable2512
claude
committed
fe854ad
feat: migrate primitives to stable2512 APIs (phase 2, in progress)
claude
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c0bf07b
feat: migrate runner, pallets and precompiles to stable2512 (phases 2-4)
claude
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233a40b
feat: migrate runtime to stable2512 (phase 5, host-side)
claude
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9d16604
feat: migrate stability-rpc, vendored trace RPC, and custom authorship to stable2512
claude
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0421235
feat: migrate node service/rpc to stable2512 (phase 8, host-side)
claude
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c20a1a8
fix: remove spurious syn runtime dependency from 3 pallets (unblocks wasm)
claude
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8554874
test: migrate all mock runtimes and test helpers to stable2512 (phase 6)
claude
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86b95f0
fix: give inert NativeBalances a non-zero existential deposit
claude
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b79bf3f
fix(node): register storage_proof_size host function
claude
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21f5801