nx_moonraker_loop_e2e_test.nx

nx_moonraker_loop_e2e_test.nx -- full input-side substrate loop: real-shape Moonraker JSON -> parse -> pump -> verdict -> wire bytes ready for nx_mr_post_ipv4. This is the CANONICAL composition smoke for the spaghetti prevention loop. Two synthetic Moonraker query responses (one healthy, one with bed-cooled-down-mid-print) flow through the entire substrate input + decision + output chain. Scenarios: A. Healthy snapshot -> NONE -> 0 wire bytes B. Hot bed dropping (1st obs) -> NONE -> 0 wire bytes (timer started) C. Hot bed dropping (3s later) -> BED_TEMP_DROP -> "POST /printer/print/pause" expect_exit: 0 license_tier: ORIGINAL