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In non-proxy VP modes (Immediate / Review / Print Queue), the slicer now sees real AMS / FTS / nozzle / k-profile state from the target printer and streams the live camera — full slicer-as-remote functionality without giving up Bambuddy's queue / archive / dispatch features. Architecture (cached-as-base, single source of truth). The bridge caches the latest real push_status and info.get_version response from Bambuddy's existing per-printer MQTT subscription — no second session on the printer, firmware in-flight budget unaffected (#1164). _send_status_report serves a near-byte-identical copy of the cached push with only the upload-state- machine fields overridden. Command responses (extrusion_cali_get, AMS write acks, xcam) fan out raw — they carry sequence_ids the slicer is waiting on. Slicer-issued commands forward to the printer except project_file / gcode_file, which still terminate locally because the file lives on Bambuddy. Camera is a raw TCPProxy on bind_ip:322 → printer:322, same approach proxy mode uses. Field-shape gotchas pinned in the bridge module's docstring and the new test file: - Real Bambu pushes use json.dumps(indent=4) wire format. Compact JSON fails BambuStudio's Send pre-flight silently. - net.info[*].ip is the FTP destination IP (little-endian uint32). Without rewriting to the VP bind IP, the slicer FTPs straight to the real printer. - upgrade_state.sn rewritten to VP serial; AMS-hardware sn fields (n3f/0.sn etc.) left alone. - ipcam.rtsp_url passes through unchanged; BambuStudio overrides the URL host with the device IP it bound on, so :322 lands on the VP's TCPProxy. - extrusion_cali_get must forward; answering it locally hides the user's stored per-filament k-profiles. Setup nuance for camera: the VP's access code must match the target printer's because the slicer authenticates RTSPS with whatever access code is in its profile. MQTT and FTP work either way. Tested e2e with BambuStudio and OrcaSlicer against H2D (dual-nozzle, AMS 2 Pro + AMS HT) and X1C across all three non-proxy modes — sync, send, k-profile lookup, AMS configuration from slicer, and live camera all work. Proxy mode is untouched: SlicerProxyManager owns its own proxies and never instantiates SimpleMQTTServer or MQTTBridge. 25 new tests in backend/tests/unit/test_vp_mqtt_bridge.py cover lifecycle, caching, identity / IP rewriting, wire format, slicer→printer routing, and the LE-uint32 IP encoder against the real H2D capture value.