fix: Clear the initialized condition state when the card is not usable (#2646)

The `initialized` state (used in conditions/triggers) was written once
and never cleared, so it meant "has this card ever been initialized"
while everything reading it took it as "is this card usable now". Home
Assistant takes a card off the page and puts it back whenever its
dashboard tab is left and returned to, so the card initialized again
while the state claimed it was initialized throughout: `trigger:
initialized` fired once per card rather than once per startup, and
automations were dropped in between.

The card lifecycle is now an explicit state machine (`SessionManager`),
the only writer of `initialized`, which separates a card that is
starting up from one initializing part of itself again while it runs. A
new `ever` parameter (conditions/triggers) selects the old latched
behaviour.

`remote_control` uses that parameter to keep its two camera priorities
correct under repeated starts. With `camera_priority: entity` the card
now re-reads the entity every time it starts, so a camera selected while
the card was away is picked up on return. With `camera_priority: card`
the card writes the entity on its first start only, unchanged, since
repeating that write would overwrite a camera the user had selected.

Closes: #2642


BREAKING CHANGE: `condition: initialized` is now `false` whenever the
card is not usable, and `trigger: initialized` fires each time the card
starts up rather than only the first time. Set `ever: true` on either to
keep the previous behaviour.

tests/config/types.test.ts

@@ -890,13 +890,13 @@ describe('config defaults', () => {
 
   it('should include all conditions', () => {
     const conditions = [
-      { condition: 'and', conditions: [{ condition: 'initialized' }] },
+      { condition: 'and', conditions: [{ condition: 'initialized', ever: false }] },
       { condition: 'call', call: ['ringing', 'answered'] },
       { condition: 'camera', cameras: ['camera.office'] },
       { condition: 'display_mode', display_mode: 'single' },
       { condition: 'expand', expand: true },
       { condition: 'fullscreen', fullscreen: true },
-      { condition: 'initialized' },
+      { condition: 'initialized', ever: false },
       { condition: 'interaction', interaction: true },
       {
         condition: 'key',
@@ -909,14 +909,14 @@ describe('config defaults', () => {
       },
       { condition: 'media_loaded', media_loaded: true },
       { condition: 'microphone', muted: true },
-      { condition: 'not', conditions: [{ condition: 'initialized' }] },
+      { condition: 'not', conditions: [{ condition: 'initialized', ever: false }] },
       {
         condition: 'numeric_state',
         entity_id: 'sensor.office_temperature',
         above: 10,
         below: 20,
       },
-      { condition: 'or', conditions: [{ condition: 'initialized' }] },
+      { condition: 'or', conditions: [{ condition: 'initialized', ever: false }] },
       { condition: 'screen', media_query: '(orientation: landscape)' },
       {
         condition: 'state',
@@ -1934,7 +1934,7 @@ describe('automations should accept Home Assistant input shorthands', () => {
       },
     ]);
 
-    expect(result[0].triggers).toEqual([{ trigger: 'initialized' }]);
+    expect(result[0].triggers).toEqual([{ trigger: 'initialized', ever: false }]);
   });
 
   it('should reject a non-object automation', () => {