V6.12.0

Removed

• The shadow BMS leaves the blueprint. Deriving a state of charge from the energy counters is a
  battery concern, not a charge-control one: the blueprint never owned the formula, it only wrote
  the tare helpers the external sensor read back. It now consumes a state of charge like any other
  measurement and no longer cares where it comes from. Gone with it are the inputs for the shadow
  BMS sensor and both tare helpers, the discharge counter that had no other use, the trigger and
  branch for recalibrating while the battery leaves 100 %, and the tare anchoring in the
  cell-balancing branch. The charge counter stays: it is also the probe that tells the blueprint
  the inverter connection is alive.
• The helper package no longer ships the two tare helpers; they belong to the shadow BMS.

Added

• The five mandatory input sections now name the fields inside them that may stay empty, and the
  function that is lost with each. A section marked mandatory otherwise suggests every field in it
  has to be assigned, while several of them only gate an optional feature.
• Tests for the priority cascade: one scenario per branch, stating which branch wins and what it
  writes to the inverter, plus the couplings in which a change to one branch can quietly disable
  another. A coverage test reads the branch aliases out of the blueprint and compares them with the
  ones the scenarios reach, so a new branch turns it red until a scenario covers it.