Convert ambient module declarations to proper TypeScript module files

[Copilot]

• Convert all 183 ambient declare module .d.ts files in components/ to proper module declarations (remove wrapper, dedent content)
  • 182 converted via script (single-quoted specifiers)
  • 1 converted manually (settings.d.ts used double-quoted specifier)
  • data-table/column.resizer.d.ts intentionally left as-is (third-party ambient declaration)
  • index.d.ts already a proper module file, unchanged
• Validate all files have top-level export statements
• Run parallel validation (no issues found)
• PR created: Convert ambient module declarations to proper TypeScript module files #1

[robigan]

LGTM