Change port flag to -p with default port 3844 (#3)

* Initial plan

* Change port parameter to -p with random default

Co-authored-by: alexec <1142830+alexec@users.noreply.github.com>

* Change default port to 3844

Co-authored-by: alexec <1142830+alexec@users.noreply.github.com>

* Merge main branch and resolve conflicts

Co-authored-by: alexec <1142830+alexec@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: alexec <1142830+alexec@users.noreply.github.com>
Co-authored-by: Alex Collins <alexec@users.noreply.github.com>

Author: Copilot

README.md

@@ -8,14 +8,14 @@ A tiny Go program that shows git diffs in the current directory and all git repo
 # Build
 go build -o diff-server .
 
-# Run (default port 8080, current directory)
+# Run (default port 3844, current directory)
 ./diff-server
 
 # Run on custom port
-./diff-server -port 9000
+./diff-server -p 9000
 
 # Scan a different directory
 ./diff-server -C /path/to/workspace
 ```
 
-Then open http://localhost:8080 (or your custom port) in a browser to view the diffs.
+Then open http://localhost:3844 (or your custom port) in a browser to view the diffs.

main.go

@@ -8,7 +8,7 @@ import (
 )
 
 func main() {
-	port := flag.String("port", "8080", "Port to listen on")
+	port := flag.String("p", "3844", "Port to listen on")
 	workspaceDir := flag.String("C", ".", "Directory to scan for git repositories")
 	flag.Parse()