docs(android): M12 phase 1 as landed

The colors phase, shipped as Android-app#34. Seven notes, of which three are
departures the build forced rather than choices it made:

ColorScheme has no equals in material3 1.3.0, so AC-1's "full equality, not a
spot check" is a field-by-field compare by reflection over all 36 color roles,
against a verbatim copy of the pre-M12 scheme held in the test.

ShardPillFg is derived from --accent-bright rather than being a sixteenth
token, under the rule 5.1 already states for ShardOnCta.

An instance with an env accent and no theme_visual row loses its accented CTA
buttons, because brand.accent now seeds --accent alone. That is 5.1's "wrong
twice over" being corrected, and it is the one thing on screen that moves.

PLAN.md 9's M12 entry records phase 1 landed.

Co-Authored-By: Claude <noreply@anthropic.com>

android/PLAN.md

@@ -1042,7 +1042,10 @@ push, and Play (M6–M8) follow the designed app.
     appearance store) carries a hard rule: it must change nothing on screen. **Phase 0 landed
     2026-08-08** (Android-app#33 / docs#112): `SiteAppearance` now holds the brand, the resolved
     theme tokens and the parsed `nav_public`, refreshed on resume, with nothing yet reading the last
-    two — see THEMING_AND_NAV.md "Phase 0 as landed".
+    two — see THEMING_AND_NAV.md "Phase 0 as landed". **Phase 1 landed 2026-08-08**
+    (Android-app#34 / docs#113): the fifteen color tokens now resolve into a `ShardPalette` that
+    feeds both the Material scheme and a `LocalShardPalette`, and the no-op invariant is a test —
+    the shipped palette reproduces the pre-M12 `ColorScheme` role for role.
 
 ### Deferred (not a milestone)