chore: initialize repository baseline

Import the existing Electron + React + TypeScript app as the version-control
baseline before the scanner rework (C# input/capture sidecar, resolution-anchored
layout profiles, OCR preprocessing, eval harness, rescan-merge, GOOD interop).

Housekeeping in this commit:
- Remove orphaned temp_inputhelper_block.ts (duplicate of the input-helper script).
- Ignore .claude/scheduled_tasks.lock local session state.
- Add .gitattributes to normalize line endings (LF in repo).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

electron/preload.ts

@@ -0,0 +1,33 @@
+import { contextBridge, ipcRenderer } from "electron";
+import type { CaptureOptions, GoodDatabase, ReviewSamplePayload, ScannerStatusPayload, ScannerLearningRulePayload } from "../src/types/global.js";
+import type { StoredArtifactRecord } from "../src/types/storage.js";
+import type { AppSnapshot } from "../src/types/domain.js";
+
+contextBridge.exposeInMainWorld("assistantApi", {
+  loadSnapshot: () => ipcRenderer.invoke("snapshot:load"),
+  saveSnapshot: (snapshot: AppSnapshot) => ipcRenderer.invoke("snapshot:save", snapshot),
+  runMockScan: () => ipcRenderer.invoke("scan:runMock"),
+  listCaptureSources: () => ipcRenderer.invoke("capture:listSources"),
+  captureSource: (sourceId: string, delayMs = 0, focusGenshin = false, options?: CaptureOptions) => ipcRenderer.invoke("capture:captureSource", sourceId, delayMs, focusGenshin, options),
+  clickScreen: (x: number, y: number) => ipcRenderer.invoke("automation:clickScreen", x, y),
+  scrollScreen: (notches: number, anchorX?: number, anchorY?: number) => ipcRenderer.invoke("automation:scrollScreen", notches, anchorX, anchorY),
+  getAutomationGuard: () => ipcRenderer.invoke("automation:getGuard"),
+  focusMainWindow: () => ipcRenderer.invoke("app:focusMainWindow"),
+  focusGenshin: () => ipcRenderer.invoke("automation:focusGenshin"),
+  getRuntimeInfo: () => ipcRenderer.invoke("app:getRuntimeInfo"),
+  saveReviewSample: (sample: ReviewSamplePayload) => ipcRenderer.invoke("review:saveSample", sample),
+  loadReviewSamples: (limit = 50) => ipcRenderer.invoke("review:loadSamples", limit),
+  loadScannerLearningRules: () => ipcRenderer.invoke("scanner:loadLearningRules"),
+  saveScannerLearningRules: (rules: ScannerLearningRulePayload) => ipcRenderer.invoke("scanner:saveLearningRules", rules),
+  loadArtifacts: () => ipcRenderer.invoke("artifacts:load"),
+  saveArtifacts: (records: StoredArtifactRecord[]) => ipcRenderer.invoke("artifacts:saveMany", records),
+  exportGood: (payload: GoodDatabase) => ipcRenderer.invoke("good:export", payload),
+  publishScannerStatus: (status: ScannerStatusPayload) => ipcRenderer.invoke("scanner:publishStatus", status),
+  showOverlay: () => ipcRenderer.invoke("overlay:show"),
+  hideOverlay: () => ipcRenderer.invoke("overlay:hide"),
+  onScannerCommand: (callback: (command: "start-auto" | "stop") => void) => {
+    const listener = (_event: Electron.IpcRendererEvent, command: "start-auto" | "stop") => callback(command);
+    ipcRenderer.on("scanner:command", listener);
+    return () => ipcRenderer.removeListener("scanner:command", listener);
+  },
+});