style: cargo fmt --all — make codebase rustfmt-clean

First run of the build-and-test CI gate (cargo fmt --all -- --check) surfaced
pre-existing formatting drift across the agent and server crates. Apply rustfmt
across the workspace so the codebase meets its own CI gate. Pure formatting; no
logic changes.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

agent/src/encoder/mod.rs

@@ -10,7 +10,7 @@ mod raw;
 pub use raw::RawEncoder;
 
 use crate::capture::CapturedFrame;
-use crate::proto::{VideoFrame, RawFrame, DirtyRect as ProtoDirtyRect};
+use crate::proto::{DirtyRect as ProtoDirtyRect, RawFrame, VideoFrame};
 use anyhow::Result;
 
 /// Encoded frame ready for transmission

agent/src/encoder/raw.rs

@@ -122,12 +122,7 @@ impl RawEncoder {
     }
 
     /// Extract pixels for dirty rectangles only
-    fn extract_dirty_pixels(
-        &self,
-        data: &[u8],
-        width: u32,
-        dirty_rects: &[DirtyRect],
-    ) -> Vec<u8> {
+    fn extract_dirty_pixels(&self, data: &[u8], width: u32, dirty_rects: &[DirtyRect]) -> Vec<u8> {
         let stride = (width * 4) as usize;
         let mut pixels = Vec::new();
 
@@ -174,7 +169,8 @@ impl Encoder for RawEncoder {
             if dirty_rects.len() > 50 {
                 (frame.data.clone(), Vec::new(), true)
             } else {
-                let dirty_pixels = self.extract_dirty_pixels(&frame.data, frame.width, &dirty_rects);
+                let dirty_pixels =
+                    self.extract_dirty_pixels(&frame.data, frame.width, &dirty_rects);
                 (dirty_pixels, dirty_rects, false)
             }
         } else {