feat: scaffold application (#1)

### Explanation

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### Issue

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### Attestations

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

### Dependencies

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

### Style

- [x] I have run the linter and resolved any errors.
- [x] My pull request uses an appropriate title, matching the conventional commit standards.
- [x] 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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Reviewed-on: #1
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

server/src/index.ts

@@ -0,0 +1,28 @@
+/**
+ * @copyright nhcarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+
+import fastify from "fastify";
+import { logger } from "./utils/logger.js";
+
+const server = fastify({
+  logger: false,
+});
+
+server.get("/", async(_request, reply) => {
+  reply.redirect("https://hikari.nhcarrigan.com");
+});
+
+server.get("/health", async(_request, reply) => {
+  reply.status(200).send("OK~!");
+});
+
+server.listen({ port: 20_000 }, (error) => {
+  if (error) {
+    void logger.error("instantiate server", error);
+    return;
+  }
+  void logger.log("debug", "Server listening on port 20000.");
+});