feat: move project to crates

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/como_domain/src/common/mod.rs

@@ -0,0 +1,37 @@
+pub mod user;
+
+use std::collections::BTreeMap;
+
+#[derive(Debug, Clone)]
+pub struct Context {
+    values: BTreeMap<String, String>,
+}
+
+impl Context {
+    pub fn new() -> Self {
+        Self {
+            values: Default::default(),
+        }
+    }
+
+    pub fn with_value(&self, key: impl Into<String>, value: impl Into<String>) -> Self {
+        let mut values = self.values.clone();
+
+        let _ = values.insert(key.into(), value.into());
+
+        Self { values }
+    }
+
+    pub fn with_value_mut(
+        &mut self,
+        key: impl Into<String>,
+        value: impl Into<String>,
+    ) -> &mut Self {
+        self.values.insert(key.into(), value.into());
+        self
+    }
+
+    pub fn get(&self, key: impl AsRef<str>) -> Option<&str> {
+        self.values.get(key.as_ref()).map(|s| s.as_str())
+    }
+}