Refactor and clean up code across multiple modules

- Simplified token type assignment in OAuth service.
- Removed unused session_lock module and re-exported Session from zesdex_entities.
- Cleaned up session entity by removing unnecessary comments and code.
- Consolidated session handling in HTTP handlers for better readability.
- Improved formatting and readability in OAuth repository tests.
- Enhanced session lock repository with clearer match statements.
- Streamlined session repository error handling.
- Refined RNG tests for better clarity.
- Adjusted module visibility and organization in lib.rs.
- Updated IPC client and connection code for better error handling and clarity.
- Improved frame handling in IPC for better readability.
- Organized module imports and added test utilities for IPC.
- Enhanced database connection error handling.
- Simplified JWT token creation error handling.
- Improved password verification error handling.
- Cleaned up state management code for better readability.
- Refactored middleware for session authentication and rate limiting.
- Simplified clipboard utility for better error handling.
- Enhanced logging initialization for better error reporting.
- Improved pagination utility with clearer method annotations.
- Cleaned up sanitization functions for filenames and paths.
- Enhanced slug generation functions for better clarity and usability.

crates/zesdex-backend/src/tool/search.rs

@@ -48,16 +48,8 @@ impl Tool for Grep {
     ///
     /// Return: "no matches found" if empty, else a header + `path:line:text` rows.
     fn run(&self, ctx: &ToolCtx, args: &Value) -> Result<String> {
-        let pattern = args
-            .get("pattern")
-            .and_then(|v| v.as_str())
-            .ok_or_else(|| anyhow!("missing required argument: pattern"))?
-            .to_string();
-        let rel = args
-            .get("path")
-            .and_then(|v| v.as_str())
-            .ok_or_else(|| anyhow!("missing required argument: path"))?
-            .to_string();
+        let pattern = crate::tool::arg_str(args, "pattern")?;
+        let rel = crate::tool::arg_str(args, "path")?;
         let path = resolve_path(&ctx.workspaces, &rel)?;
         if !path.exists() {
             anyhow::bail!("path '{rel}' does not exist");
@@ -137,16 +129,8 @@ impl Tool for Glob {
     ///
     /// Return: sorted newline-joined matches; "no files match" sentinel if empty.
     fn run(&self, ctx: &ToolCtx, args: &Value) -> Result<String> {
-        let pat_str = args
-            .get("pattern")
-            .and_then(|v| v.as_str())
-            .ok_or_else(|| anyhow!("missing required argument: pattern"))?
-            .to_string();
-        let rel = args
-            .get("path")
-            .and_then(|v| v.as_str())
-            .ok_or_else(|| anyhow!("missing required argument: path"))?
-            .to_string();
+        let pat_str = crate::tool::arg_str(args, "pattern")?;
+        let rel = crate::tool::arg_str(args, "path")?;
         let root = resolve_path(&ctx.workspaces, &rel)?;
         if !root.exists() || !root.is_dir() {
             anyhow::bail!("path '{rel}' is not a valid directory");