Add configuration files and update project documentation

- Introduced .editorconfig for consistent coding styles across the project.
- Added .golangci.yml for Go linting configuration.
- Updated AGENTS.md to clarify project structure and components.
- Enhanced CONTRIBUTING.md with Makefile usage for common tasks.
- Updated Dockerfiles to use Go 1.24 and improved build instructions.
- Refined README.md and deployment documentation for clarity.
- Added testing documentation in testing.md for backend and frontend tests.
- Introduced Makefile for streamlined development commands and tasks.

frontend-nuxt/assets/css/app.css

@@ -1,6 +1,30 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
+@import "tailwindcss";
+@plugin "daisyui" {
+  themes: light --default;
+}
+
+@plugin "daisyui/theme" {
+  name: "dark";
+  prefersdark: true;
+  color-scheme: dark;
+  --color-primary: oklch(54.6% 0.245 277);
+  --color-primary-content: oklch(100% 0 0);
+  --color-secondary: oklch(55.5% 0.25 293);
+  --color-secondary-content: oklch(100% 0 0);
+  --color-accent: oklch(65.5% 0.155 203);
+  --color-accent-content: oklch(100% 0 0);
+  --color-neutral: oklch(27.5% 0.014 249);
+  --color-neutral-content: oklch(74.7% 0.016 249);
+  --color-base-100: oklch(21.2% 0.014 251);
+  --color-base-200: oklch(18.8% 0.013 253);
+  --color-base-300: oklch(16.5% 0.011 250);
+  --color-base-content: oklch(74.7% 0.016 249);
+}
+
+@theme {
+  --font-sans: 'Inter', ui-sans-serif, system-ui, sans-serif;
+  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
+}
 
 html,
 body,
@@ -8,10 +32,6 @@ body,
   height: 100%;
 }
 
-body {
-  font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
-}
-
 @keyframes login-card-in {
   from {
     opacity: 0;