fix(vite): tsconfig paths plugin should not partially match paths (#29501)

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## Current Behavior
<!-- This is the behavior we have today -->

When there is a path mapping like:
```
"match-lib-deep/": ["libs/lib1/src/*"],
"match-lib-top-level": ["libs/lib2/src/*"],
"match-lib/*": ["libs/lib3/src/*"],
```

Imports to `match-lib-deep` or `match-lib-top-level` will try and use
the last `match-lib` path mapping as the trailing `/` is not accounted
for in the `startsWith` check.

## Expected Behavior
<!-- This is the behavior we should expect with the changes in this PR
-->

The correct path mapping is matched.

## Related Issue(s)
<!-- Please link the issue being fixed so it gets closed when this is
merged. -->

N/A

(cherry picked from commit 6948249)

Author: mattlewis92

e2e/vite/src/vite.test.ts

@@ -206,6 +206,47 @@ describe('@nx/vite/plugin', () => {
 
       expect(() => runCLI(`test ${mylib}`)).not.toThrow();
     });
+
+    it('should not partially match a path mapping', () => {
+      const lib1 = uniq('lib1');
+      const lib2 = uniq('lib2');
+      const lib3 = uniq('lib3');
+      runCLI(
+        `generate @nx/react:library libs/${lib1} --bundler=none --unitTestRunner=vitest`
+      );
+      runCLI(
+        `generate @nx/react:library libs/${lib2} --bundler=none --unitTestRunner=vitest`
+      );
+      runCLI(
+        `generate @nx/react:library libs/${lib3} --bundler=none --unitTestRunner=vitest`
+      );
+      updateFile(`libs/${lib1}/src/foo.enum.ts`, `export const foo = 'foo';`);
+      updateFile(`libs/${lib2}/src/bar.enum.ts`, `export const bar = 'bar';`);
+      updateFile(`libs/${lib3}/src/bam.enum.ts`, `export const bam = 'bam';`);
+      updateFile(
+        `libs/${lib1}/src/foo.spec.ts`,
+        `
+          import { foo } from 'match-lib-deep/foo.enum';
+          import { bar } from 'match-lib-top-level';
+          import { bam } from 'match-lib/bam.enum';
+          test('should work', () => {
+            expect(foo).toBeDefined();
+            expect(bar).toBeDefined();
+            expect(bam).toBeDefined();
+          });
+        `
+      );
+      updateJson('tsconfig.base.json', (json) => {
+        json.compilerOptions.paths['match-lib-deep/*'] = [`libs/${lib1}/src/*`];
+        json.compilerOptions.paths['match-lib-top-level'] = [
+          `libs/${lib2}/src/bar.enum.ts`,
+        ];
+        json.compilerOptions.paths['match-lib/*'] = [`libs/${lib3}/src/*`];
+        return json;
+      });
+
+      expect(() => runCLI(`test ${lib1}`)).not.toThrow();
+    });
   });
 
   describe('react with vitest only', () => {

packages/vite/plugins/nx-tsconfig-paths.plugin.ts

@@ -237,7 +237,10 @@ There should at least be a tsconfig.base.json or tsconfig.json in the root of th
 
       const normalizedImport = alias.replace(/\/\*$/, '');
 
-      if (importPath.startsWith(normalizedImport)) {
+      if (
+        importPath === normalizedImport ||
+        importPath.startsWith(normalizedImport + '/')
+      ) {
         const joinedPath = joinPathFragments(
           tsconfig.absoluteBaseUrl,
           paths[0].replace(/\/\*$/, '')