fix: Resolve build errors and warnings, and update grammar

Co-authored-by: aider (openai/andrew/openrouter/sonoma-sky-alpha) <aider@aider.chat>

src/config.rs

@@ -4,6 +4,7 @@ use anyhow::{Result, Context};
 use serde::{Deserialize, Serialize};
 use log::{debug, error};
 use crate::args::{Args};
+use dirs;
 
 #[derive(Debug, Clone, Serialize, Deserialize, Default)]
 #[serde(rename_all = "lowercase")]

src/modes/diff.rs

@@ -117,7 +117,7 @@ pub fn mode_diff(
 
     validate_diff_args(cmd, &ids, &tags)?;
 
-    let settings = crate::config::Settings::new(args, crate::config::default_dir()?)?;
+    let settings = crate::config::Settings::new(args, crate::config::Settings::default_dir()?)?;
 
     let item_service = crate::services::item_service::ItemService::new(settings.dir.clone());
 

src/parser/filter.pest

@@ -1,6 +1,6 @@
 WHITESPACE = _{ " " | "\t" | "\n" | "\r" }
 
-#! This Pest grammar defines the syntax for filter chains used in the Keep application.
+//! This Pest grammar defines the syntax for filter chains used in the Keep application.
 
 // Main entry point for parsing multiple filters separated by pipes
 filters = { SOI ~ filter ~ (pipe ~ filter)* ~ EOI }

src/parser/filter_parser.rs

@@ -6,6 +6,8 @@ use std::collections::HashMap;
 #[grammar = "filter.pest"]
 pub struct FilterParser;
 
+use FilterParser::Rule;
+
 #[derive(Debug)]
 pub struct Filter {
     pub name: String,