add workspace Cargo.toml and docker-compose.yml and more styles

Cargo.toml

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+[workspace]
+members = [ "datafetcher","dataworker"]

datafetcher/Cargo.toml

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+[package]
+name = "datafetcher"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+chrono = "0.4.39"
+maud = { version = "0.26.0", features = ["rocket"] }
+reqwest = "0.12.12"
+rocket = "0.5.1"
+tokio = { version = "1.43.0", features = ["rt-multi-thread", "macros", "time"] }
+dataworker = { path = "../dataworker" }
+serde = { version = "1.0.217", features = ["derive"] }
+serde_json = "1.0.137"

datafetcher/src/lib.rs

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+use std::time::Duration;
+
+fn main() {
+    let time_window = Duration::from_secs(3600);
+}

datafetcher/src/main.rs

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+#[macro_use]
+extern crate rocket;
+use maud::{html, Markup, PreEscaped, DOCTYPE};
+use rocket::response::stream::{Event, EventStream};
+use rocket::tokio::time::{interval, Duration};
+
+struct SsePayload {
+
+}
+
+#[get("/sse")]
+async fn sse() -> EventStream![] {
+    EventStream! {
+        let mut interval = interval(Duration::from_secs(2));
+        loop {
+            interval.tick().await;
+            yield Event::data(format!("Updated time: {:?}", chrono::Utc::now()));
+        }
+    }
+}
+
+#[get("/")]
+fn index() -> Markup {
+    html! {
+        (DOCTYPE)
+        html lang="en" {
+            head {
+                meta charset="utf-8";
+                title { "Live Updates with SSE" }
+                style {
+                    "body {
+                        color: white;
+                        display: flex;
+                        flex-direction: column;
+                        align-items: center;
+                        justify-content: center;
+                        height: 100vh;
+                        background: rgb(34,187,195);
+                        background: linear-gradient(0deg, rgba(34,187,195,1) 0%, rgba(102,45,253,1) 100%);
+                        font-family: sans-serif;
+                    }
+                    .glassy {
+                        background: rgba(255, 255, 255, 0.2);
+                        border-radius: 16px;
+                        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
+                        backdrop-filter: blur(2.8px);
+                        -webkit-backdrop-filter: blur(2.8px);
+                        border: 1px solid rgba(255, 255, 255, 0.3);
+                    }
+                    .data-grid {
+                        margin: 2em;
+                        padding: 2em;
+                        display: flex;
+                        flex-direction: column;
+                        align-items: center;
+                        justify-content: center;
+                        border-radius: 18px;
+                    }
+                    .data-cell {
+                        margin: 0.5em 1em;
+                        padding: 1em;
+                        border-radius: 18px;
+                        display: flex;
+                        flex-direction: column;
+                        width: 100%;
+                    }
+                    "
+                }
+                script {
+                    (PreEscaped("const eventSource = new EventSource('/sse');
+                    eventSource.onmessage = (event) => {
+                        document.getElementById('updates').innerText = event.data;
+                    };"))
+                }
+            }
+            body style="" {
+                h1 style="align-items: center;" { "willdaten dashboard" }
+                div class="glassy data-grid" {
+                    div class="glassy data-cell" {
+                        h3 { "Fetcher" }
+                        div id="updates" { "Waiting for updates..." }
+                    }
+                    div class="glassy data-cell" {
+                        h3 { "Database" }
+                        div id="updates" { "Waiting for updates..." }
+                    }
+                    div class="glassy data-cell" {
+                        h3 { "Statistics" }
+                        div id="updates" { "Waiting for updates..." }
+                    }
+                }
+            }
+        }
+    }
+}
+
+#[launch]
+fn rocket() -> _ {
+    rocket::build().mount("/", routes![index, sse])
+}

docker-compose.yml

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+services:
+
+  db:
+    image: postgres
+    restart: always
+    environment:
+      POSTGRES_HOST_AUTH_METHOD: trust
+      POSTGRES_USER: postgres
+    ports:
+      - 5432:5432