Function cp_diag

tests/test_convergence_probe.c:287–299

    "TRPC_CALLS", "USAGE", "ASYNC_CALLS", "WRITES", NULL};

static void cp_diag(cbm_store_t *store, const char *project, const char *label) {
    if (!store) { fprintf(stderr, "  [CP] %s: no graph DB\n", label); return; }
    char line[640] = {0};
    for (int i = 0; CP_ALL_EDGE_TYPES[i]; i++) {
        int c = cbm_store_count_edges_by_type(store, project, CP_ALL_EDGE_TYPES[i]);
        if (c > 0 && strlen(line) < sizeof(line) - 48) {
            char one[56];
            snprintf(one, sizeof(one), "%s=%d ", CP_ALL_EDGE_TYPES[i], c);
            strncat(line, one, sizeof(line) - strlen(line) - 1);
        }
    }
    fprintf(stderr, "  [CP] %s edges=[%s]\n", label, line[0] ? line : "(none)");
}

/* Helper: index N meaningful files plus enough Python pad files to force
 * the parallel pipeline path (MIN_FILES_FOR_PARALLEL = 50). */