refactor: Remove branch specification from sal dependency

- Removed the branch specification from the `sal` dependency in
  `doctree/Cargo.toml` and `webbuilder/Cargo.toml`. This simplifies
  the dependency management and relies on the default branch of the
  repository.
- Updated `.gitignore` to ignore `sccache.log` to prevent it from
  being committed to the repository.
- Updated example commands in `example_commands.sh` to use a different
  collection name (`grid1` instead of `grid_documentation`) for testing
  purposes.  This avoids potential conflicts with pre-existing data.
- Improved code structure and organization in `doctree/src/lib.rs`.

doctree/src/lib.rs

@@ -5,33 +5,29 @@
 
 // Import lazy_static for global state
 
-mod error;
-mod storage;
-mod utils;
 mod collection;
 mod doctree;
+mod error;
 mod include;
+mod storage;
+mod utils;
 
-pub use error::{DocTreeError, Result};
-pub use storage::RedisStorage;
 pub use collection::{Collection, CollectionBuilder};
-pub use doctree::{DocTree, DocTreeBuilder, new, from_directory};
+pub use doctree::{DocTree, DocTreeBuilder, from_directory, new};
+pub use error::{DocTreeError, Result};
 pub use include::process_includes;
+pub use storage::RedisStorage;
 
 #[cfg(test)]
 mod tests {
     use super::*;
-    
 
     #[test]
     fn test_doctree_builder() {
         // Create a storage instance
-        let storage = RedisStorage::new("dummy_url").unwrap();
+        let storage = RedisStorage::new("redis://localhost:6379").unwrap();
 
-        let doctree = DocTree::builder()
-            .with_storage(storage)
-            .build()
-            .unwrap();
+        let doctree = DocTree::builder().with_storage(storage).build().unwrap();
 
         assert_eq!(doctree.collections.len(), 0);
         assert_eq!(doctree.default_collection, None);