feat: initial project version (#1)

### Explanation

_No response_

### Issue

_No response_

### Attestations

- [ ] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [ ] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [ ] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).

### Dependencies

- [ ] I have pinned the dependencies to a specific patch version.

### Style

- [ ] I have run the linter and resolved any errors.
- [ ] My pull request uses an appropriate title, matching the conventional commit standards.
- [ ] My scope of feat/fix/chore/etc. correctly matches the nature of changes in my pull request.

### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
- [ ] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [ ] All new and existing tests pass locally with my changes.
- [ ] Code coverage remains at or above the configured threshold.

### Documentation

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### Versioning

_No response_

Reviewed-on: https://codeberg.org/nhcarrigan/website-headers/pulls/1
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

build.ts

@@ -0,0 +1,16 @@
+import { readFile, writeFile } from "fs/promises";
+import { join } from "path";
+import { minify } from "terser";
+
+const code = (
+  await readFile(join(process.cwd(), "prod", "index.js"), "utf-8")
+).replace("{{ version }}", process.env.npm_package_version ?? "0.0.0");
+const result = await minify(code, {
+  format: {
+    comments: /@license|@preserve|@copyright/,
+  },
+});
+if (!result.code) {
+  throw new Error("Failed to minify code.");
+}
+await writeFile(join(process.cwd(), "prod", "index.js"), result.code);