feat: implement OCR client, worker, and types for text detection

[piquark6046]

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[Copilot]

Pull request overview

Adds an OCR-based detection pipeline to the userscript by introducing an inlined Web Worker (built via esbuild) plus a client wrapper, and hooks it into Vue DOM-settled events to scan for likely ad elements.

Changes:

• Add OCR worker + message types (ocr-worker.ts, ocr-types.ts) and a browser/userscript-side worker client (ocr-client.ts).
• Add Vue mutation “settled” event helper + DOM wait helper to coordinate scanning (vuejsawait.ts, dom-await.ts).
• Update build pipeline to bundle the worker and inline it into the userscript via __OCR_WORKER_CODE__, plus update grants/deps/tsconfigs.

Reviewed changes

Copilot reviewed 15 out of 17 changed files in this pull request and generated 12 comments.

Show a summary per file

File	Description
userscript/VM.d.ts	Pulls in Violentmonkey GM typings.
userscript/tsconfig.json	Includes the VM type shim in compilation.
userscript/source/vuejsawait.ts	Adds Vue DOM mutation “change/settled” event emitter.
userscript/source/dom-await.ts	Adds helper to await an element via MutationObserver.
userscript/source/ocr-types.ts	Defines OCR worker request/response and match result types.
userscript/source/ocr-worker.ts	Implements OCR-like bitmap processing + template matching in a worker.
userscript/source/ocr-client.ts	Implements worker client + image loading/rasterization (incl. GM.xmlHttpRequest).
userscript/source/index.ts	Replaces prior logic with Vue-settled scanning + OCR detection flow.
userscript/package.json	Updates lint deps and adds @violentmonkey/types.
tsconfig.json	Removes alwaysStrict override from root config.
package.json	Updates shared eslint/typescript-eslint versions.
builder/tsconfig.json	Adds types: ["node"] to fix Node typings for builder.
builder/source/utils/http-server.ts	Hardens loopback check when remoteAddress is null.
builder/source/debug.ts	Tightens types and timer handling in watcher/debug flow.
builder/source/build.ts	Bundles OCR worker and inlines code via define.__OCR_WORKER_CODE__.
builder/source/banner/index.ts	Adds @grant GM.xmlHttpRequest for OCR client fetches.
builder/package.json	Updates toolchain deps (esbuild, eslint, typescript, etc.).

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