Add JS spec generator for codama-nodes link nodes

[lorisleiva]

This PR introduces a JS-driven spec generator under spec-generators/ that regenerates parts of codama-nodes from @codama/spec, mirroring the JS monorepo's @codama/fragments/RenderMap architecture. It covers the link-node category: each leaf node is emitted to codama-nodes/src/generated/link_nodes/, and the LinkNode union enum (plus its HasName dispatch) is generated from the flattened spec union. Hand-written link-node files shrink to test-only modules. The generator is a standalone pnpm project (tsup build, vitest, oxlint/oxfmt) wired into CI via a new job that runs lint, tests, and a generate + git diff --exit-code round-trip check.

[lorisleiva]

• spec-generators: map float to crate::Number; remove FIELD_TYPE_OVERRIDES #104
• Generate Rust type nodes #103
• Generate Rust topLevel nodes (account, constant, error, event, instruction*, pda, program, root, …) #102
• Generate Rust enum shells from spec literalUnions #101
• Generate Rust enum shells from spec enumerations #100
• Generate contextualValue nodes; align Rust variant names with the derived rule #99
• Generate RegisteredNodes category unions; remove HAND_WRITTEN_UNIONS #98
• Derive inline-union allowlist from the spec; remove INLINE_UNIONS #97
• Rename Rust types to match spec; remove UNION_NAME_OVERRIDES + ENUMERATION_NAME_OVERRIDES #96
• Generate value nodes; introduce field-type override + hand-written-union skip #95
• Add inline-union support and complete pdaSeed generation #94
• Generate count and discriminator nodes #93
• Add JS spec generator for codama-nodes link nodes #92 👈 (View in Graphite)
• main

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[lorisleiva]

Merge activity

• Jun 10, 2:13 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Jun 10, 2:13 PM UTC: @lorisleiva merged this pull request with Graphite.