[cayossarian]

Reviews every entry in the 2.2.0 changelog against the code on prerelease/2.2 and what 2.1.2 did.

• Earlier behaviour. Where an entry changes something a 2.1.x user had, it now says what they saw before: the battery that appeared only after a reload, the unknown error on a rate-limited registration, the monitoring summary reading "0 circuits · 0 mains", the DSM blips that read as the grid returning, the false 0 W, the dip-compensation offset, the excessive CPU and the charge-limit values below the charger's minimum.
• Support for other models. 2.1.x only ran on MAIN 32, so changes that only those panels reach are worded as support, with no earlier behaviour: remote CTs, shared meters and relays, the EV charger lock and panel readings, solar-role circuits, breaker positions, a battery wired to a breaker, and passphrase-only registration. Solar-role circuits and breaker positions move from Changed to Added.
• Removed entries.
  • "A panel that publishes no solar source no longer gets a Solar device or PV Power sensor" applied only to panels that publish circuit roles. A MAIN 32 still gets PV Power from power-flows/pv. What remains is folded into the solar-role entry.
  • The entry about circuit ids is removed, since every MAIN 32 circuit id has the format 2.1.x already accepted.
• Merged entries. The card's fix for unreported readings, which arrives with the bundled card 0.10.0-beta.1, joins the matching power-sensor entry. That entry now also says that automations relying on 0 need to handle unknown.
• Option names. Entries name the options as they appear on screen: Who may operate the panel, Auto-Compensate Energy Dips and the Get monitoring status action.

Documentation only; no behaviour changes.