feat: Add basic project structure and configuration

- Add `.env.template` file for environment variable configuration.
- Add `.gitignore` file to ignore generated files and IDE artifacts.
- Add `Cargo.toml` file specifying project dependencies.
- Add basic project documentation in `README.md` and configuration
  guide in `docs/configuration.md`.
- Add Gitea authentication guide in `docs/gitea-auth.md`.
- Add installation guide in `docs/installation.md`.
- Add MVC architecture guide in `docs/mvc.md`.
- Add views guide in `docs/views.md`.

src/static/css/styles.css

@@ -0,0 +1,49 @@
+/* Custom styles for Hostbasket */
+
+/* Global styles */
+body {
+    min-height: 100vh;
+    display: flex;
+    flex-direction: column;
+}
+
+main {
+    flex: 1;
+}
+
+/* Navigation */
+.navbar-brand {
+    font-weight: bold;
+}
+
+/* Cards */
+.card {
+    margin-bottom: 1rem;
+    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
+    transition: all 0.3s ease;
+}
+
+.card-main {
+    height: 120px;
+}
+
+.card:hover {
+    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
+    transform: translateY(-0.25rem);
+}
+
+/* Buttons */
+.btn {
+    border-radius: 0.25rem;
+}
+
+/* Forms */
+.form-control:focus {
+    border-color: #80bdff;
+    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
+}
+
+/* Footer */
+.footer {
+    margin-top: auto;
+}