Refresh README and docs to reflect current facade state

[jonathanpeppers]

A lot of tracked issues have shipped since these docs were last touched (#56 animation, #57/#102 effects, #58 text styling, #60 Navigation, #61 theme reads + Color value type, #62 state primitives + RememberSaveable, #63 Modifier surface, #65 Compose value types, #70/#100 Arrangement, #97 SuspendBridge, #121 drawer family facades, #122 TopAppBar branching, #133 parameterized MaterialTheme). The README, architecture doc, and sample READMEs still described the world from several months ago, so this refreshes them.

README.md

• Soften the "27-line entire MainActivity.cs" claim. The actual MainActivity.cs is now a 1838-line kitchen-sink demo with tabs for every facade. The snippet stays as the canonical hello-world shape but the prose now points readers at samples/Jetchat for a single-screen real-app example.
• Rebuild the "What's wrapped today" table with everything shipped since: Pager / FlowRow / Carousels / PullToRefreshBox / LazyStaggeredGrid, full Button + IconButton + FAB families, Text styling primitives, SecureTextField, ExposedDropdownMenu, DockedSearchBar, NavHost / NavController, Animation, Effects, expanded Modifier surface, Color value type + parameterized MaterialTheme + theme reads, SuspendBridge, expanded state-holder list.

docs/architecture.md

• Add ComposeFacadeGenerator alongside the two generators previously documented (third generator in the pipeline).
• New "Compose value types" section covering Color / Dp / Sp / FontWeight / TextAlign and the ComposeValueTypes registry.
• Rewrite "Known issues" to mark theming reads (Theming: parameterize MaterialTheme (ColorScheme/Typography/Shapes), Color value type, Material Icons, MaterialTheme.colorScheme reads #61), effects (Add Compose effects API: LaunchedEffect, DisposableEffect, SideEffect, rememberCoroutineScope #57 / Compose effect APIs: LaunchedEffect / DisposableEffect / SideEffect #128), suspend bridges (Add SuspendBridge for Kotlin suspend functions #97), and Compose Navigation (Bind Compose Navigation: NavHost, composable("route"), rememberNavController, navigate/popBackStack, deep links #60) as shipped, with the remaining caveats. Add a "Still missing (tracked)" list pointing at Add CompositionLocal + CompositionLocalProvider (LocalContext, LocalDensity, LocalContentColor, LocalTextStyle, ...) #59 (CompositionLocal), Bind drawing primitives: Canvas, Modifier.drawBehind/drawWithContent, DrawScope, Brush, Path, Shape factories #64 (drawing), Bind WindowInsets padding modifiers (imePadding, navigationBarsPadding, statusBarsPadding, …) #69 (WindowInsets), Bind M3 Expressive newcomers: SplitButton, ButtonGroup, LoadingIndicator #54 / Bind M3 Expressive FAB variants: MediumFAB, FAB menu, ToggleFAB #103 (M3 Expressive), and the drawer suspend Open/Close gap.

samples/README.md

• Drop closed issues (Bind foundation layout/scroll primitives: Pager, FlowRow/FlowColumn, BoxWithConstraints, remaining Lazy variants #51 / Bind PullToRefreshBox (Material 3 pull-to-refresh) #53 / Text styling + input config: Text parameters/TextStyle, AnnotatedString, KeyboardOptions/Actions, VisualTransformation, supportingText, leading/trailing icons #58 / Theming: parameterize MaterialTheme (ColorScheme/Typography/Shapes), Color value type, Material Icons, MaterialTheme.colorScheme reads #61 / Add state primitives: rememberSaveable, mutableStateListOf/MapOf, derivedStateOf, snapshotFlow/produceState, keyed remember #62 / Expand Modifier surface: Background/Border/Clickable wrappers, Size/Width/Height, AspectRatio/Offset/Alpha/Clip, gestures, focus, semantics, weight/align #63 / Add C# value types for Compose inline-class params (Color, Dp, Sp, FontWeight, TextAlign, Shape) and pass them through bridges #65 / Surface Row.HorizontalArrangement / Column.VerticalArrangement (Start/End/Center/SpaceBetween/SpaceAround/spacedBy) #70) from the open gaps table and list them as a one-line summary instead. Add Add CompositionLocal + CompositionLocalProvider (LocalContext, LocalDensity, LocalContentColor, LocalTextStyle, ...) #59 (CompositionLocal) to the open list.
• Restore the Attribution paragraph that had been accidentally truncated by a stray table row.

samples/Jetchat/README.md

• Recast the "Hard-coded colors / typography" implementation notes as "feasible, not yet wired" now that MaterialTheme.CurrentColorScheme(composer) / CurrentTypography(composer) exist.
• Update the hamburger-nav-icon note to reflect that DrawerStateHolder landed in Migrate drawer family to [ComposeFacade] (#121) #131 (Phase 10) and only the suspend Open() / Close() bridges remain.
• Wire the user-profile-screen omission to NavHost / NavController (now bound via Bind Compose Navigation: NavHost, composable("route"), rememberNavController, navigate/popBackStack, deep links #60).
• Move the asymmetric RoundedCornerShape omission from closed Add C# value types for Compose inline-class params (Color, Dp, Sp, FontWeight, TextAlign, Shape) and pass them through bridges #65 to still-open Bind drawing primitives: Canvas, Modifier.drawBehind/drawWithContent, DrawScope, Brush, Path, Shape factories #64 (drawing primitives).

Not touched

docs/NOTES.md is intentionally untouched. The main README already labels it as historical Tier 1 notes, and most of its content is about per-binding setup that has since been deleted.

[Copilot]

Pull request overview

This documentation-only PR refreshes four markdown files to reflect the many facade features that have shipped since the docs were last updated (covering PRs and issues: #56 animation, #57/#102/#128 effects, #58 text styling, #60 Navigation, #61 theming + Color, #62 state primitives, #63 Modifier surface, #65 Compose value types, #70/#100 Arrangement, #97 SuspendBridge, #121 drawer family facades, #122 TopAppBar branching, #133 parameterized MaterialTheme). No code changes are included.

Changes:

• Rebuild the README's "What's wrapped today" table with all newly shipped composables, value types, animation, effects, async support, and navigation; soften the "27-line MainActivity.cs" claim to point readers at the kitchen-sink demo and the Jetchat sample.
• Add the ComposeFacadeGenerator and "Compose value types" sections to docs/architecture.md, rewrite "Known issues" to mark theming/effects/suspend/navigation as shipped, and add a "Still missing (tracked)" section.
• Clean up samples/README.md (move closed issues out of the tracking table, fix a stray #20 table row that was misplaced after the Attribution section) and update samples/Jetchat/README.md to recast shipped features as "feasible — not yet wired" with correct issue/PR cross-references.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
README.md	Updated "What's wrapped today" table with all shipped facade families; softened the intro snippet claim; expanded the Status paragraph to mention the kitchen-sink demo.
docs/architecture.md	Added ComposeFacadeGenerator to the generator list; new "Compose value types" section; shipped-feature bullets under "Known issues" (theming, effects, suspend, navigation); new "Still missing (tracked)" section.
samples/README.md	Removed closed issues (#51/#53/#58/#61/#62/#63/#65/#70) from tracking table, added #59/#20, listed closed issues as a summary paragraph, fixed a stray #20 row after Attribution.
samples/Jetchat/README.md	Recast theming/typography rows as "feasible — not yet wired"; updated DrawerStateHolder/NavHost references to reflect PRs #131/#60/#133; moved asymmetric Shape tracking from #65 to #64.