Fix Imaginate by porting its JS roundtrip code to graph-based async execution in Rust (#1250)

* Create asynchronous rust imaginate node

* Make a first imaginate request via rust

* Implement parsing of imaginate API result image

* Stop refresh timer from affecting imaginate progress requests

* Add cargo-about clarification for rustls-webpki

* Delete imaginate.ts and all uses of its functions

* Add imaginate img2img feature

* Fix imaginate random seed button

* Fix imaginate ui inferring non-custom resolutions

* Fix the imaginate progress indicator

* Remove ImaginatePreferences from being compiled into node graph

* Regenerate imaginate only when hitting button

* Add ability to terminate imaginate requests

* Add imaginate server check feature

* Do not compile wasm_bindgen bindings in graphite_editor for tests

* Address some review suggestions

- move wasm futures dependency in editor to the future-executor crate
- guard wasm-bindgen in editor behind a `wasm` feature flag
- dont make seed number input a slider
- remove poll_server_check from process_message function beginning
- guard wasm related code behind `cfg(target_arch = "wasm32")` instead
  of `cfg(test)`
- Call the imaginate idle states "Ready" and "Done" instead of "Nothing
  to do"
- Call the imaginate uploading state "Uploading Image" instead of
  "Uploading Input Image"
- Remove the EvalSyncNode

* Fix imaginate host name being restored between graphite instances

also change the progress status texts a bit.

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

frontend/src/wasm-communication/editor.ts

@@ -95,3 +95,7 @@ export function createEditor() {
 		subscriptions,
 	};
 }
+
+export function injectImaginatePollServerStatus() {
+	window["editorInstance"]?.injectImaginatePollServerStatus()
+}

frontend/src/wasm-communication/messages.ts

@@ -516,7 +516,7 @@ export class TriggerCopyToClipboardBlobUrl extends JsMessage {
 
 export class TriggerDownloadBlobUrl extends JsMessage {
 	readonly layerName!: string;
-	
+
 	readonly blobUrl!: string;
 }
 
@@ -537,85 +537,6 @@ export class TriggerDownloadTextFile extends JsMessage {
 	readonly name!: string;
 }
 
-export class TriggerImaginateCheckServerStatus extends JsMessage {
-	readonly hostname!: string;
-}
-
-export class TriggerImaginateGenerate extends JsMessage {
-	@Type(() => ImaginateGenerationParameters)
-	readonly parameters!: ImaginateGenerationParameters;
-
-	@Type(() => ImaginateBaseImage)
-	readonly baseImage!: ImaginateBaseImage | undefined;
-
-	@Type(() => ImaginateMaskImage)
-	readonly maskImage: ImaginateMaskImage | undefined;
-
-	readonly maskPaintMode!: string;
-
-	readonly maskBlurPx!: number;
-
-	readonly maskFillContent!: string;
-
-	readonly hostname!: string;
-
-	readonly refreshFrequency!: number;
-
-	readonly documentId!: bigint;
-
-	readonly layerPath!: BigUint64Array;
-
-	readonly nodePath!: BigUint64Array;
-}
-
-export class ImaginateMaskImage {
-	readonly svg!: string;
-
-	readonly size!: [number, number];
-}
-
-export class ImaginateBaseImage {
-	readonly mime!: string;
-
-	readonly imageData!: Uint8Array;
-
-	@TupleToVec2
-	readonly size!: [number, number];
-}
-
-export class ImaginateGenerationParameters {
-	readonly seed!: number;
-
-	readonly samples!: number;
-
-	readonly samplingMethod!: string;
-
-	readonly denoisingStrength!: number | undefined;
-
-	readonly cfgScale!: number;
-
-	readonly prompt!: string;
-
-	readonly negativePrompt!: string;
-
-	@BigIntTupleToVec2
-	readonly resolution!: XY;
-
-	readonly restoreFaces!: boolean;
-
-	readonly tiling!: boolean;
-}
-
-export class TriggerImaginateTerminate extends JsMessage {
-	readonly documentId!: bigint;
-
-	readonly layerPath!: BigUint64Array;
-
-	readonly nodePath!: BigUint64Array;
-
-	readonly hostname!: string;
-}
-
 export class TriggerRasterizeRegionBelowLayer extends JsMessage {
 	readonly documentId!: bigint;
 
@@ -778,7 +699,7 @@ export class ImaginateImageData {
 	readonly mime!: string;
 
 	readonly imageData!: Uint8Array;
-	
+
 	readonly transform!: Float64Array ;
 }
 
@@ -1404,9 +1325,6 @@ export const messageMakers: Record<string, MessageMaker> = {
 	TriggerDownloadRaster,
 	TriggerDownloadTextFile,
 	TriggerFontLoad,
-	TriggerImaginateCheckServerStatus,
-	TriggerImaginateGenerate,
-	TriggerImaginateTerminate,
 	TriggerImport,
 	TriggerIndexedDbRemoveDocument,
 	TriggerIndexedDbWriteDocument,