feat(core): add Quick/Nimble *Spec.swift to Swift group

Quick is the Swift ecosystem's RSpec analogue — the dominant BDD-style
testing framework before Apple shipped Swift Testing (Xcode 16, 2024).
Files follow the `<Subject>Spec.swift` convention and typically live
under `<Package>Tests/` (SPM) or `<AppName>Tests/` (Xcode) alongside
XCTest files, so the dir rules do catch most of them — but small
gem-style packages and CLI tools sometimes keep `*Spec.swift` at the
`Sources/` root, which the dir rules miss.

Kept as a separate opt-in glob from `*Tests.swift` so users on
XCTest-only projects (Apple's official Swift repos, Alamofire) aren't
carrying a comment for a framework they don't use. Mirrors the split
in the Ruby group between RSpec `*_spec.rb` and Minitest `*_test.rb`.

understand-anything-plugin/packages/core/src/__tests__/ignore-generator.test.ts

@@ -293,6 +293,13 @@ describe("generateStarterIgnoreFile", () => {
       expect(content).toContain("# **/*Test.swift");
     });
 
+    it("includes Swift Quick/Nimble BDD *Spec.swift files", () => {
+      const content = generateStarterIgnoreFile(testDir);
+      // Quick is the Swift RSpec-equivalent — dominant in codebases that
+      // adopted BDD styling before Swift Testing shipped.
+      expect(content).toContain("# **/*Spec.swift");
+    });
+
     it("groups patterns under the JS / TS sub-header", () => {
       const content = generateStarterIgnoreFile(testDir);
       expect(content).toContain("# JS / TS");

understand-anything-plugin/packages/core/src/ignore-generator.ts

@@ -167,6 +167,7 @@ const TEST_PATTERN_GROUPS: Array<{ label: string; patterns: string[] }> = [
     patterns: [
       "**/*Tests.swift",
       "**/*Test.swift",
+      "**/*Spec.swift",
     ],
   },
 ];