fix(#1164,#1171): harness writes status file, c0re just rescans

hive-c0re/src/limits.rs

@@ -48,6 +48,9 @@ pub fn check_size(label: &str, body: &str) -> Result<(), String> {
 /// payload. Cap at 200 chars to fit the chip plus a little
 /// descriptive padding without forcing the operator to read a
 /// scrolling chunk.
+/// NOTE: `hive-ag3nt/src/mcp.rs::write_status_file` mirrors this constant
+/// client-side so invalid text is caught before the file is written.
+/// Keep in sync if this value changes.
 pub const STATUS_MAX_CHARS: usize = 200;
 
 /// Validate a `set_status` payload. Single-line + bounded so