feat: resolve parachain IDs to human-readable names

Problem

Query results that reference parachain IDs (e.g., HRMP channels, XCM messages) show raw numeric IDs like 2034, which are meaningless without cross-referencing external registries.

Proposed Solution

Ship a static registry of well-known parachains:

// src/core/parachain-registry.ts
export const PARACHAIN_NAMES: Record<number, string> = {
  1000: "AssetHub",
  2000: "Acala",
  2004: "Moonbeam",
  2006: "Astar",
  2030: "Bifrost",
  2034: "Hydration",
  2035: "Phala",
  // ...
}

Display rules

• Pretty output: Annotate IDs inline — sender: 2034 (Hydration)
• JSON output: Unchanged (raw numeric IDs only) to preserve machine parseability
• Registry can be extended over time; unknown IDs just show the number without annotation

Priority

LOW

Files

• src/core/parachain-registry.ts (new)
• src/core/output.ts (pretty formatter)

Start with the proposed src/core/parachain-registry.ts and the pretty-formatting path in src/core/output.ts. Add the well-known parachain mappings and annotate numeric IDs only in pretty output, while leaving JSON output unchanged. Confirm unknown IDs remain numeric and known IDs display their names.