fix: Resolve Pascal extraction edge cases

- Fix defProc method lookup collisions when multiple classes share
  method names (e.g. Create) by indexing qualified forms
- Remove overly broad 'Id' prefix filter that swallowed user-defined
  symbols like Identifier or IdleTimer
- Use case-insensitive extension matching for DFM/FMX routing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/resolution/index.ts

@@ -435,7 +435,7 @@ export class ReferenceResolver {
       const pascalUnitPrefixes = [
         'System.', 'Winapi.', 'Vcl.', 'Fmx.', 'Data.', 'Datasnap.',
         'Soap.', 'Xml.', 'Web.', 'REST.', 'FireDAC.', 'IBX.',
-        'IdHTTP', 'IdTCP', 'IdSSL', 'Id',
+        'IdHTTP', 'IdTCP', 'IdSSL',
       ];
       if (pascalUnitPrefixes.some((p) => name.startsWith(p))) {
         return true;