docs: add interactive mode to DEVLOG

Update DEVLOG.md to document interactive mode as a third
mode of operation alongside dot syntax and explicit paths

DEVLOG.md

@@ -60,7 +60,7 @@ The project is organized into several modules:
 
 ## Current Operation
 
-Stash now supports two main modes of operation:
+Stash now supports three main modes of operation:
 
 1. Dot Syntax:
 
@@ -82,6 +82,16 @@ Stash now supports two main modes of operation:
    - Moves package from source to target
    - Creates symlink at original location
 
+3. Interactive Mode:
+
+   ```scheme
+   stash --source=~/.config/package --interactive
+   ```
+
+   - Takes source directory as input
+   - Interactively prompts for target directory
+   - Ideal for first-time users and exploratory stashing
+
 ### Symlink Creation Process
 
 1. Determines source and target paths