Init commit.

Add: simple project structure for `mygo.server`.

Add: README files.

mygo.server/README.md

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+# MyGO Server
+
+This is the server backend of MyGO.
+
+## TODO
+
+- [ ] CLI
+- [ ] Web (JWT) Authentication
+- [ ] User Administration APIs
+- [ ] File upload and download (HTTP)
+
+## Usage
+
+To run the server simply:
+
+```bash
+mygo web
+```
+
+To run the server with specified configuration file (default: `./config.yml`):
+
+```bash
+mygo web -c /path/to/config.yml
+```
+
+## Commands
+
+### mygo web
+
+Run the HTTP web server and listen on the specified port.
+
+