KOPR Comet Analyzer final integration — R187 compact reference

Current runtime
  One Comet Analyzer tab
  One wlightcurves.WLightCurves implementation
  One WLIGHTCURVES_POLICY
  Immutable typed targets and datasets
  One workspace for 1..N comets

State ownership
  Target-scoped: returns and formulas
  Global: channel visibility and Fit Groups
  Independent fit: 1..N targets
  Shared n: 2+ compatible targets
  Formula editors: active-target navigation, all-target atomic validation

Automatic range
  X: visible observations only
  Y: observations + model/formula/Bortle inside automatic X
  Auto range: cached view command

Scenarios
  Portable suffix: .kopr-lc.json
  One schema for 1..N targets
  Transactional restore

Compatibility
  wanalyzer.py / wcomparison.py: deprecated aliases
  legacy_comparison_import.py: one-way migration only
  No active type_codes or self.script runtime state

Qualification
  R187: PASS_HEADLESS
  Current Analyzer suite: 384 passed, 3 skipped, 0 failed
  Pending real PyQt5 gates: R154, R161, R179

Deferred
  Remove incorrect deg suffix from dimensionless Marcus d_90
  Add explicit Legacy pooled-fit preset
  Decide generic/clear/unfiltered CCD policy