nx_print_telemetry_test.nx

nx_print_telemetry_test.nx -- exercise the unified telemetry pump across all 4 enabled surfaces. Closed-form invariants: (a) Empty event (all has_* = 0): no issue, no count (b) Motion-only event with normal values: no issue (c) Motion + thermal + runout + shift all populated, normal: no issue (d) Shift drift fires LAYER_SHIFT (priority 1) (e) When multiple kinds fire on one tick, returned verdict is the priority-1 winner BUT n_issues_total counts all fires (f) Partial population: has_motion=1, others 0; runout sensor set but has_runout=0 -> no runout fire (g) Null m / null ev returns NONE expect_exit: 0 license_tier: ORIGINAL