wireless_e2e: cover daemon-side audio upload + playback

JS: optional gzip+base64 encoding for uploads (default on)

docs/tests: refresh PR notes for fire-and-forget shape; strip em dashes

tests: rewrite wireless_e2e.py for fire-and-forget upload + broadcast events

tests: wireless_e2e.py — full upload+play+cancel round-trip via raw WS

tests: wireless_baseline.py — compare streamed setTarget vs daemon-native playback

Sync from production marionette-js (state baseline before streaming-move work)

Lead-comp PDF: one representative run per side; average shift-sweep

Report builder: split into two PDFs, tighter layout, mpl tables

Refine HEAD_LEAD_S to 205 ms; add PDF report builder

tests: Python equivalent of the JS streaming benchmark + comparison plot

Initial clone from RemiFabre/marionette-js + experimental marker