feat(import): remember the user's import selection

Yaak now remembers, per item of a linked import source, whether the user
wants it. A mapping row that still points at a model means wanted, so
re-imports merge into it; a row with no model behind it means not wanted,
so re-imports leave it alone. Wanted-ness is structural rather than a flag:
deleting the model locally, or turning the item down in the preview, is
what makes it not wanted.

- import_source_resources drops `snapshot` for a nullable `content_hash`
  and lets `model_id` be NULL. The migration keeps every beta row's
  key to model mapping and starts hashes empty; until a hash is recorded,
  a difference can't be attributed to either side, so the item is offered
  once as a conflict that keeps local changes.
- comparable() ignores sortPriority. Importers number it from source
  order, so inserting one operation used to plan a fake update for
  everything after it. The trade is that pure reorders don't propagate.
- Keys the user turned down come back as unchecked "not imported" rows
  instead of being re-offered as new resources or resurrected. Checking
  one imports it under the same source key and pulls in the folders it
  needs.
- An imported resource the source moves into a folder that isn't imported
  is offered as a deletion, with a tooltip pointing at the folder.
- Plan-time source resolution binds by source-key overlap instead of by
  path, so a renamed or moved file merges into what it created and heals
  the stored origin. Several sources sharing keys never guess-merge: the
  plan says so and imports everything as new.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

crates/common/yaak-rpc-schema/bindings/gen_models.ts

@@ -331,17 +331,6 @@ export type ImportSource = {
   lastImportedAt: string;
 };
 
-export type ImportSourceResource = {
-  model: "import_source_resource";
-  createdAt: string;
-  updatedAt: string;
-  importSourceId: string;
-  sourceKey: string;
-  modelType: string;
-  modelId: string;
-  snapshot: string;
-};
-
 export type InheritedBoolSetting = { enabled?: boolean; value: boolean };
 
 export type InheritedHttpVersionSetting = { enabled?: boolean; value: HttpVersion };

crates/common/yaak-rpc-schema/bindings/gen_util.ts

@@ -1,7 +1,21 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
-import type { Environment, Folder, GrpcRequest, HttpRequest, WebsocketRequest, Workspace } from "./gen_models";
+import type {
+  Environment,
+  Folder,
+  GrpcRequest,
+  HttpRequest,
+  WebsocketRequest,
+  Workspace,
+} from "./gen_models";
 
-export type BatchUpsertResult = { workspaces: Array<Workspace>, environments: Array<Environment>, folders: Array<Folder>, httpRequests: Array<HttpRequest>, grpcRequests: Array<GrpcRequest>, websocketRequests: Array<WebsocketRequest>, };
+export type BatchUpsertResult = {
+  workspaces: Array<Workspace>;
+  environments: Array<Environment>;
+  folders: Array<Folder>;
+  httpRequests: Array<HttpRequest>;
+  grpcRequests: Array<GrpcRequest>;
+  websocketRequests: Array<WebsocketRequest>;
+};
 
 export type ImportConflictResolution = "keep_mine" | "take_source";
 
@@ -11,38 +25,74 @@ export type ImportConflictResolution = "keep_mine" | "take_source";
  * The destination workspace and optional folder IDs are captured in the plan so the preview describes
  * the exact destination that confirmation will use.
  */
-export type ImportDestination = { "type": "new_workspace" } | { "type": "existing_workspace", workspaceId: string, folderId?: string, };
+export type ImportDestination =
+  | { type: "new_workspace" }
+  | { type: "existing_workspace"; workspaceId: string; folderId?: string };
 
 /**
  * Where an import's contents came from, used to link the committed workspace back to it.
  */
-export type ImportOrigin = { 
-/**
- * The absolute file path or URL the contents were read from.
- */
-origin: string, label: string, };
+export type ImportOrigin = {
+  /**
+   * The absolute file path or URL the contents were read from.
+   */
+  origin: string;
+  label: string;
+};
 
-export type ImportPlan = { importer: string, destination: ImportDestination, resources: BatchUpsertResult, warnings: Array<ImportPlanWarning>, 
-/**
- * Stable source key for every model in `resources`, keyed by its planned ID.
- */
-sourceKeys: { [key in string]?: string }, 
-/**
- * One entry per plannable resource; commit applies only the selected ones.
- */
-items: Array<ImportPlanItem>, origin?: ImportOrigin, };
+export type ImportPlan = {
+  importer: string;
+  destination: ImportDestination;
+  resources: BatchUpsertResult;
+  warnings: Array<ImportPlanWarning>;
+  /**
+   * Stable source key for every model in `resources`, keyed by its planned ID.
+   */
+  sourceKeys: { [key in string]?: string };
+  /**
+   * One entry per plannable resource; commit applies only the selected ones.
+   */
+  items: Array<ImportPlanItem>;
+  origin?: ImportOrigin;
+};
 
-export type ImportPlanAction = "create" | "update" | "delete" | "unchanged" | "keep_local" | "conflict";
+export type ImportPlanAction =
+  | "create"
+  | "update"
+  | "delete"
+  | "unchanged"
+  | "keep_local"
+  | "conflict"
+  | "not_imported";
+
+export type ImportPlanItem = {
+  action: ImportPlanAction;
+  model: ImportResourceType;
+  modelId: string;
+  name: string;
+  /**
+   * Planned parent folder ID for incoming resources; current parent for deletions.
+   */
+  parentId?: string;
+  selected: boolean;
+  resolution?: ImportConflictResolution;
+  reason?: ImportPlanReason;
+};
 
-export type ImportPlanItem = { action: ImportPlanAction, model: ImportResourceType, modelId: string, name: string, 
 /**
- * Planned parent folder ID for incoming resources; current parent for deletions.
+ * Extra context for an action that would otherwise be indistinguishable from its plain form.
  */
-parentId?: string, selected: boolean, resolution?: ImportConflictResolution, };
+export type ImportPlanReason = "moved_into_not_imported_folder";
 
-export type ImportPlanWarning = { title: string, detail: string, };
+export type ImportPlanWarning = { title: string; detail: string };
 
 /**
  * The model types an import plan can contain.
  */
-export type ImportResourceType = "environment" | "folder" | "grpc_request" | "http_request" | "websocket_request" | "workspace";
+export type ImportResourceType =
+  | "environment"
+  | "folder"
+  | "grpc_request"
+  | "http_request"
+  | "websocket_request"
+  | "workspace";