chore: add tasks.py with Invoke CLI for project automation

Author: DiogoRibeiro7

TODO.md

@@ -67,7 +67,7 @@ This document outlines future enhancements, features, and ideas for improving th
 ## 🧠 8. New Survival Models to Implement
 
 - [ ] Accelerated Failure Time (AFT) models:
-  - [ ] Log-Normal AFT
+  - [X] Log-Normal AFT
   - [ ] Log-Logistic AFT
   - [ ] Weibull AFT formulation
 - [ ] Piecewise Exponential Model

docs/source/modules.md

@@ -24,3 +24,8 @@
     options:
       members: true
       undoc-members: tru
+
+::: gen_surv.aft
+    options:
+      members: true
+      undoc-members: true