Generate a visited consumer-facing IDL

[lorisleiva]

This PR separates the raw interface IDL from the consumer-facing IDL.

Pipeline

make generate-idl-interface now:

1. runs codama-rs and writes the macro-generated tree to interface-idl.json;
2. runs the Codama CLI's idl script, applying all configured before visitors;
3. uses @codama/renderers-core#writeIdlVisitor to write the resolved tree to idl.json.

The Makefile owns both steps, so CI regenerates and checks both artifacts deterministically. make generate-clients also runs the idl, js and rust scripts from the same post-visitor tree.

Result

• interface-idl.json is byte-identical to the previously committed raw idl.json.
• Consumer-facing idl.json now matches the transformed tree used by client generation:
  • redelegate removed;
  • epoch and unixTimestamp aliases resolved (including date-time display);
  • stakeStateAccount wrapper present;
  • instruction data flattened/unwrapped;
  • no dangling defined-type links.
• Generated JS/Rust clients remain byte-identical.

Also adds @codama/renderers-core@^1.4.0 and updates codama to ^1.10.2.

Verification

• IDL generation is idempotent across repeated runs.
• Builds without Codama; all interface and Codama schema tests pass.
• Rust fmt/clippy clean with warnings denied.
• Both IDLs parse as valid JSON.
• The shared Solana CI setup already installs pnpm dependencies before running the IDL Makefile target.