feat: add project budgets and rounding override columns

src-tauri/src/database.rs

@@ -46,6 +46,24 @@ pub fn init_db(conn: &Connection) -> Result<(), rusqlite::Error> {
         [],
     )?;
 
+    // Migrate projects table — add budget columns (safe to re-run)
+    let project_migrations = [
+        "ALTER TABLE projects ADD COLUMN budget_hours REAL DEFAULT NULL",
+        "ALTER TABLE projects ADD COLUMN budget_amount REAL DEFAULT NULL",
+        "ALTER TABLE projects ADD COLUMN rounding_override INTEGER DEFAULT NULL",
+    ];
+    for sql in &project_migrations {
+        match conn.execute(sql, []) {
+            Ok(_) => {}
+            Err(e) => {
+                let msg = e.to_string();
+                if !msg.contains("duplicate column") {
+                    return Err(e);
+                }
+            }
+        }
+    }
+
     conn.execute(
         "CREATE TABLE IF NOT EXISTS tasks (
             id INTEGER PRIMARY KEY AUTOINCREMENT,