Function cbm_get_home_dir

src/foundation/platform.c:440–458

/* ── Home directory (cross-platform) ───────────────────── */

const char *cbm_get_home_dir(void) {
    static CBM_TLS char buf[CBM_SZ_1K];
    char tmp[CBM_SZ_256] = "";

    cbm_safe_getenv("HOME", tmp, sizeof(tmp), NULL);
    if (tmp[0]) {
        snprintf(buf, sizeof(buf), "%s", tmp);
        cbm_normalize_path_sep(buf);
        return buf;
    }

    cbm_safe_getenv("USERPROFILE", tmp, sizeof(tmp), NULL);
    if (tmp[0]) {
        snprintf(buf, sizeof(buf), "%s", tmp);
        cbm_normalize_path_sep(buf);
        return buf;
    }
    return NULL;
}

/* ── App config directories (cross-platform) ────────── */