Fix for issue #1791: by pretty printing mangled platform_map codeblock in seed-canonical-heads.mjs

[drQedwards]

Mangled platform_map code block now looks readable with its canonical constants to align and look like the constants for the canonical_head_group code block.

this closes and resolves issue #1791 only after this PR gets merged.

Only then can we begin fixing the issues we the mismatch errors in CAIP-2 in the metadata and labels directory when it comes to bip122, aka bitcoin having a mismatch where it is labeled in the metadata directory coherently, but not coded in the labels.

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Note

High Risk
Changes the seeding script’s platform-to-CAIP mapping structure and lookup logic, which can affect how CAIP-19 IDs are generated and written to label files. It also introduces TypeScript-style annotations in a .mjs script, which may break runtime execution if the script is run directly by Node without transpilation.

Overview
Refactors scripts/seed-canonical-heads.mjs to make the CoinGecko PLATFORM_MAP readable by converting it from an object lookup into an array and updating platformToCaip19 to use .find() (with a new warning when a platform has no mapping).

Adds type annotations and minor log/summary formatting tweaks while keeping the seeding behavior the same otherwise (creating/updating canonicalHead entries in label JSON files).

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[drQedwards]

B

See? The bug is resolved. As I mentioned, issue #1792 only gets resolved and closed after merging this PR .

Only then can the bigger issue of the mismatch error in the metadata and labeling directories for bip122 Bitcoin can be fixed and addressed.