LabLink 2.3.0 — Rigol instrument support

Added

• Rigol digital multimeter drivers (server/equipment/rigol_multimeter.py): RigolDM3058, RigolDM3058E
  and RigolDM3068 built on a shared RigolDMMBase, implemented from the RIGOL DM3058/DM3068 programming
  guides (RIGOL command set). Full remote control: function selection (DCV/ACV/DCI/ACI/2W+4W resistance,
  frequency, period, capacitance, continuity, diode), manual/auto range, FAST/MEDIUM/SLOW rate, DC input
  impedance, AC filter, dual display, trigger source/interval/sample count, math (REL, statistics,
  pass/fail), beeper/brightness, interface settings read-back, *TST? self test, error queue.

• Self-identification: *IDN? parsing, USB VID/PID table entries for DM3058 (1ab1:09c4) and DM3068
  (1ab1:0c94), and multimeter-aware device-type inference in the VISA and mDNS scanners.

• Acquisition & streaming: multimeters implement get_measurement(channel), get_readings() and
  get_measurements(), so acquisition sessions can name channels by function (DCV,RES) and the
  WebSocket readings stream works unchanged. New shared MultimeterData model and
  MultimeterFunction enum.

• MockMultimeter (MOCK::DMM::n) with the same command surface, registered in the default mock set,
  plus four default multimeter profiles.

• Tests: tests/hardware/test_rigol_dmm.py (scripted SCPI simulator), tests/test_mock_multimeter.py,
  and a DM3058/DM3068 case in tests/unit/test_new_drivers.py.

• Docs: docs/RIGOL_DMM.md protocol and driver notes.

• Rigol catalogue scrape (2026-09-15): all 421 documents on rigolna.com/support/downloads indexed (420 downloaded) in
  docs/rigol/downloads_catalog.json; 75 programming guides mined into
  docs/rigol/programming_guide_inventory.json; compatibility matrix and implementation order in
  docs/RIGOL_EQUIPMENT_CATALOG.md.

• server/discovery/vendor_models.py: prefix-anchored Rigol model table used by the VISA and mDNS
  scanners, so DSA/RSA/DSG/DHO/MHO/DNA/DM858 models classify correctly. USB PIDs harvested from the
  user guides (DG 0x0642, DSA 0x0960, DSG 0x0992/0x099C/0x0993, DP1116A 0x0E10, M300 0x0C80) added to
  the USB hardware table.

• Existing scope drivers now accept the whole family they already speak to: RigolDS1104 for
  DS1054Z/DS1074Z/DS1104Z, RigolMSO2072A for all MSO2000A/DS2000A models.

• Rigol family drivers built from the scraped catalogue (each with a scripted-instrument test suite and a protocol doc in docs/):

  • rigol_power_supply.py: RigolDPBase + DP800/DP700/DP900/DP2000/DP1308A/DP1116A (21-model limits table, dialect table) — docs/RIGOL_DP.md
  • rigol_modern_scope.py: RigolModernScopeBase + 13 families (DHO800…DS80000, DS1000Z-E), 93-row model table, RAW chunked waveform transfer, screenshots — docs/RIGOL_SCOPES.md
  • rigol_function_generator.py: RigolDGBase (DG800/900/1000Z/2000/4000/5000) + RigolDGProBase (DG800/900 Pro, DG5000 Pro, DG6000), arb upload, modulation/sweep/burst, counter — docs/RIGOL_DG.md
  • rigol_spectrum_analyzer.py: RigolSABase + DSA800/DSA1000/RSA3000/RSA5000/RSA800/RSA6000, ASCII + REAL,32 trace parsing, markers, TG, RTSA mode — docs/RIGOL_SA.md
  • rigol_rf_generator.py: RigolDSGBase + DSG800/DSG3000(B)/DSG5000 — docs/RIGOL_DSG.md
  • rigol_multimeter_dm858.py: RigolDM858/RigolDM858E (standard SCPI DMM tree) — docs/RIGOL_DM858.md
  • rigol_electronic_load.py: RigolDL3000Base model table, RigolDL3031A, acquisition hook
  • rigol_vna.py: RigolVNABase + RigolRSAN (RSA3000N/5000N) and RigolDNA6000 — docs/RIGOL_VNA.md
  • rigol_daq.py: RigolM300 (scan lists, module detection, switch control) — docs/RIGOL_M300.md

• New equipment types spectrum_analyzer (shared enum), rf_signal_generator, vector_network_analyzer, data_acquisition end to end (shared/client/discovery enums, connect dialog, discovery API, safety defaults).

• New mocks: MockFunctionGenerator (MOCK::FGEN::n), MockSpectrumAnalyzer (MOCK::SA::n), MockRFGenerator (MOCK::RFGEN::n), MockVNA (MOCK::VNA::n), MockDAQ (MOCK::DAQ::n); all in the default mock set.

• Shared data models FunctionGeneratorData, SpectrumData, RFGeneratorData, NetworkAnalyzerData, DataAcquisitionData.

• equipment/manager.py: keyword-driver registry (KEYWORD_DRIVER_CLASSES / MODEL_KEYWORDS) replaces per-model elif chains for new families.

• docs/DRIVER_AUTHORING.md: the driver contract, integration hooks and per-class command vocabularies.

• Local manual archive: ~/Manuals/_archive/Rigol-manuals-2026-09-15.tar.gz + SHA-256 manifest.

Changed

• Model list in the connect dialog, SUPPORTED_MANUFACTURERS, default safety limits (multimeter),
  and the default LABLINK_MOCK_EQUIPMENT_TYPES now include multimeters.

Fixed

• BaseEquipment._query_binary() passed datatype= as a keyword to run_in_executor and always raised TypeError.
• BaseEquipment._determine_connection_type() reported serial resources such as
  ASRL/dev/ttyUSB0::INSTR as USB because the path contains "USB"; serial is now matched first.
• Device-type inference could never classify Rigol DM30xx model strings as multimeters.