S190: WPE runs in a timeout-guarded subprocess instead of unbounded in-process

S188: self-healing deep-filter resolution + real exec self-test

S186: restore DF3 per-pass timeout, add per-class timeout guard (was nuking all 4 passes silently)

S185: stop masking killed/bad-score jobs, force Itiqan aggressive everywhere, harden deep-filter

S175: safaa v4 (DF3 path fix, nara_wpe, --tier/--mujawwad, rm v3_fixed)