Upgrade GutenbergKit from v0.11.1 to v0.15.0

[jkmassel]

Summary

Minimal upgrade of GutenbergKit from v0.11.1 to v0.15.0, adapting to breaking API changes without additional refactoring.

Breaking changes addressed:

• GutenbergView.createForEditor() removed → use GutenbergView(configuration, dependencies, coroutineScope, context) constructor
• gutenbergView.start(config) removed → EditorConfiguration provided at construction time
• EditorConfiguration moved from org.wordpress.gutenberg to org.wordpress.gutenberg.model
• EditorConfiguration.Builder() replaced with EditorConfiguration.builder(siteURL, siteApiRoot, postType) (required params)
• setPostId(Int?) → setPostId(UInt?)
• GutenbergView.warmup() removed → warmup helper is now a no-op (to be reimplemented separately)

The fragment's two-phase flow (create view now, start with editor settings later via onEditorSettingsChanged) is replaced by providing the full EditorConfiguration at fragment/view construction time.

The existing GutenbergKitSettingsBuilder with its config data classes is unchanged — refactoring that is a separate effort.

Test plan

• Verify the GutenbergKit block editor opens correctly for new posts and existing posts
• Verify editor loads for both WP.com and self-hosted sites with application passwords
• Verify media insertion, undo/redo, and HTML mode toggle still work
• Run ./gradlew :WordPress:testJetpackDebugUnitTest --tests "*GutenbergKit*" — all tests pass

[dangermattic]

	1 Warning
⚠️	This PR is larger than 300 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.

Generated by 🚫 Danger

[wpmobilebot]

Project dependencies changes

list

+ New Dependencies
org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.3
org.jetbrains.kotlinx:kotlinx-serialization-json-jvm:1.7.3

! Upgraded Dependencies
org.wordpress.gutenbergkit:android:v0.15.0, (changed from v0.11.1)

tree

++--- androidx.navigation:navigation-compose:2.9.7
+|    \--- androidx.navigation:navigation-compose-android:2.9.7
+|         \--- androidx.activity:activity:1.8.0 -> 1.10.1
+|              \--- androidx.lifecycle:lifecycle-viewmodel-savedstate:2.6.1 -> 2.10.0
+|                   \--- androidx.lifecycle:lifecycle-viewmodel-savedstate-android:2.10.0
+|                        \--- androidx.savedstate:savedstate:1.4.0
+|                             \--- androidx.savedstate:savedstate-android:1.4.0
+|                                  \--- org.jetbrains.kotlinx:kotlinx-serialization-core:1.7.3
+|                                       \--- org.jetbrains.kotlinx:kotlinx-serialization-core-jvm:1.7.3
+|                                            \--- org.jetbrains.kotlinx:kotlinx-serialization-bom:1.7.3
+|                                                 +--- org.jetbrains.kotlinx:kotlinx-serialization-json-jvm:1.7.3 (c)
+|                                                 \--- org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.3 (c)
 +--- project :libs:editor
-|    \--- org.wordpress.gutenbergkit:android:v0.11.1
-|         +--- org.jetbrains.kotlin:kotlin-parcelize-runtime:2.0.21 -> 2.3.20 (*)
-|         +--- androidx.core:core-ktx:1.13.1 -> 1.16.0 (*)
-|         +--- androidx.appcompat:appcompat:1.7.0 -> 1.7.1 (*)
-|         +--- com.google.android.material:material:1.12.0 (*)
-|         +--- androidx.webkit:webkit:1.11.0 -> 1.15.0 (*)
-|         +--- com.google.code.gson:gson:2.8.9 -> 2.13.2
-|         |    \--- com.google.errorprone:error_prone_annotations:2.41.0
-|         +--- org.jetbrains.kotlinx:kotlinx-coroutines-android:1.10.2 (*)
-|         \--- org.jetbrains.kotlin:kotlin-stdlib:2.0.21 -> 2.3.20 (*)
+|    \--- org.wordpress.gutenbergkit:android:v0.15.0
+|         +--- org.jetbrains.kotlin:kotlin-parcelize-runtime:2.1.21 -> 2.3.20 (*)
+|         +--- androidx.core:core-ktx:1.13.1 -> 1.16.0 (*)
+|         +--- androidx.appcompat:appcompat:1.7.0 -> 1.7.1 (*)
+|         +--- com.google.android.material:material:1.12.0 (*)
+|         +--- androidx.webkit:webkit:1.11.0 -> 1.15.0 (*)
+|         +--- com.google.code.gson:gson:2.8.9 -> 2.13.2
+|         |    \--- com.google.errorprone:error_prone_annotations:2.41.0
+|         +--- org.jetbrains.kotlinx:kotlinx-coroutines-android:1.10.2 (*)
+|         +--- org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.3
+|         |    \--- org.jetbrains.kotlinx:kotlinx-serialization-json-jvm:1.7.3
+|         |         +--- org.jetbrains.kotlinx:kotlinx-serialization-bom:1.7.3 (*)
+|         |         +--- org.jetbrains.kotlin:kotlin-stdlib:2.0.20 -> 2.3.20 (*)
+|         |         \--- org.jetbrains.kotlinx:kotlinx-serialization-core:1.7.3 (*)
+|         +--- org.jsoup:jsoup:1.18.1 -> 1.22.1
+|         +--- com.squareup.okhttp3:okhttp:4.12.0 -> 5.3.2 (*)
+|         \--- org.jetbrains.kotlin:kotlin-stdlib:2.1.21 -> 2.3.20 (*)
-\--- org.wordpress.gutenbergkit:android:v0.11.1 (*)
+\--- org.wordpress.gutenbergkit:android:v0.15.0 (*)

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack Android by scanning the QR code below to install the corresponding build.

	App Name	Jetpack Android
	Build Type	Debug
	Version	pr22764-6cfa2a2
	Build Number	1488
	Application ID	com.jetpack.android.prealpha
	Commit	6cfa2a2
	Installation URL	3t6e3lpao2t2o

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress Android by scanning the QR code below to install the corresponding build.

	App Name	WordPress Android
	Build Type	Debug
	Version	pr22764-6cfa2a2
	Build Number	1488
	Application ID	org.wordpress.android.prealpha
	Commit	6cfa2a2
	Installation URL	7hdo8ir5fbujo

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 38 lines in your changes missing coverage. Please review.
✅ Project coverage is 37.40%. Comparing base (8c0b6d4) to head (6cfa2a2).

Files with missing lines	Patch %	Lines
...ess/android/ui/posts/EditorConfigurationBuilder.kt	0.00%	35 Missing ⚠️
...press/android/ui/posts/GutenbergKitWarmupHelper.kt	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            trunk   #22764   +/-   ##
=======================================
  Coverage   37.40%   37.40%           
=======================================
  Files        2320     2320           
  Lines      123674   123654   -20     
  Branches    16791    16793    +2     
=======================================
  Hits        46256    46256           
+ Misses      73707    73687   -20     
  Partials     3711     3711           

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