iCalendar import: parse_ical + API + MCP tool (#16)

crates/domain/src/models/channel.rs

@@ -377,6 +377,28 @@ impl ProgrammingBlock {
         }
     }
 
+    pub fn from_parts(
+        id: BlockId,
+        name: impl Into<String>,
+        start_time: NaiveTime,
+        duration_mins: u32,
+        content: BlockContent,
+        interstitial_rule: Option<InterstitialRule>,
+        mid_roll_rule: Option<MidRollRule>,
+    ) -> Self {
+        Self {
+            id,
+            name: name.into(),
+            start_time,
+            duration_mins,
+            content,
+            loop_on_finish: true,
+            ignore_rotation_policy: false,
+            interstitial_rule,
+            mid_roll_rule,
+        }
+    }
+
     pub fn new_manual(
         name: impl Into<String>,
         start_time: NaiveTime,