Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality

node_modules/tsconfig-paths/src/__tests__/mapping-entry.test.ts

@@ -0,0 +1,70 @@
+import { getAbsoluteMappingEntries } from "../mapping-entry";
+import { join } from "path";
+
+describe("mapping-entry", () => {
+  it("should change to absolute paths and sort in longest prefix order", () => {
+    const result = getAbsoluteMappingEntries(
+      "/absolute/base/url",
+      {
+        "*": ["/foo1", "/foo2"],
+        "longest/pre/fix/*": ["/foo2/bar"],
+        "pre/fix/*": ["/foo3"],
+      },
+      true
+    );
+    // assert.deepEqual(result, [
+    //   {
+    //     pattern: "longest/pre/fix/*",
+    //     paths: [join("/absolute", "base", "url", "foo2", "bar")],
+    //   },
+    //   {
+    //     pattern: "pre/fix/*",
+    //     paths: [join("/absolute", "base", "url", "foo3")],
+    //   },
+    //   {
+    //     pattern: "*",
+    //     paths: [
+    //       join("/absolute", "base", "url", "foo1"),
+    //       join("/absolute", "base", "url", "foo2"),
+    //     ],
+    //   },
+    // ]);
+    expect(result).toEqual([
+      {
+        pattern: "longest/pre/fix/*",
+        paths: [join("/absolute", "base", "url", "foo2", "bar")],
+      },
+      {
+        pattern: "pre/fix/*",
+        paths: [join("/absolute", "base", "url", "foo3")],
+      },
+      {
+        pattern: "*",
+        paths: [
+          join("/absolute", "base", "url", "foo1"),
+          join("/absolute", "base", "url", "foo2"),
+        ],
+      },
+    ]);
+  });
+
+  it("should should add a match-all pattern when requested", () => {
+    let result = getAbsoluteMappingEntries("/absolute/base/url", {}, true);
+    // assert.deepEqual(result, [
+    //   {
+    //     pattern: "*",
+    //     paths: [join("/absolute", "base", "url", "*")],
+    //   },
+    // ]);
+    expect(result).toEqual([
+      {
+        pattern: "*",
+        paths: [join("/absolute", "base", "url", "*")],
+      },
+    ]);
+
+    result = getAbsoluteMappingEntries("/absolute/base/url", {}, false);
+    // assert.deepEqual(result, []);
+    expect(result).toEqual([]);
+  });
+});