Revert "Revert "fix(statusline): Normalize JSON input by removing newlines"" (#1642)

This reverts commit dc8ff7d.

Co-authored-by: Ubuntu <azureuser@amplihack2.yb0a3bvkdghunmsjr4s3fnfhra.phxx.internal.cloudapp.net>

Author: rysweet

.claude/tools/statusline.sh

@@ -9,8 +9,8 @@
 #     "command": "$CLAUDE_PROJECT_DIR/.claude/tools/statusline.sh"
 #   }
 
-# Read JSON from Claude Code
-input=$(cat)
+# Read JSON from Claude Code and normalize (remove newlines for reliable parsing)
+input=$(cat | tr -d '\n\r')
 
 # Extract values without jq (portable)
 extract_json() {