Remove ws dep

CLAUDE.md

@@ -4,7 +4,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ## Project Overview
 
-VaultLink is a self-hosted Obsidian plugin for real-time collaborative file syncing. The project consists of a Rust-based sync server and a TypeScript frontend with three main components: an Obsidian plugin, a sync client library, and a test client.
+VaultLink is a self-hosted Obsidian plugin for real-time collaborative file syncing. The project consists of a Rust-based sync server and a TypeScript frontend with four main components: an Obsidian plugin, a sync client library, a test client, and a standalone CLI client.
 
 ## Architecture
 
@@ -13,22 +13,75 @@ VaultLink is a self-hosted Obsidian plugin for real-time collaborative file sync
 - **sync-server/**: Rust-based WebSocket server with SQLite database for document versioning and real-time synchronization
 - **frontend/sync-client/**: TypeScript library providing core sync functionality, WebSocket management, and file operations
 - **frontend/obsidian-plugin/**: Obsidian plugin that integrates the sync client with Obsidian's API
-- **frontend/test-client/**: CLI testing tool for the sync functionality
+- **frontend/test-client/**: CLI testing tool for simulating multiple concurrent users
+- **frontend/local-client-cli/**: Standalone CLI for VaultLink sync client
 
 ### Key Technologies
 
 - **Backend**: Rust with Axum framework, SQLite with SQLx, WebSockets for real-time sync
-- **Frontend**: TypeScript, Webpack for bundling, Jest for testing
+- **Frontend**: TypeScript, Webpack for bundling, Node.js native test runner
 - **Sync Algorithm**: Uses reconcile-text library for operational transformation
 
+### Architectural Patterns
+
+**Server Architecture:**
+
+- `AppState`: Central state container holding `Database`, `Cursors`, and `Broadcasts`
+- `Database`: SQLite-backed document versioning with SQLx for compile-time query verification
+- `Broadcasts`: WebSocket broadcast system for real-time updates to connected clients
+- `Cursors`: Tracks user cursor positions across documents with background cleanup task
+
+**Client Architecture:**
+
+- `SyncClient`: Main entry point, orchestrates all sync operations
+- `SyncService`: HTTP API client for CRUD operations on documents
+- `WebSocketManager`: Manages WebSocket connection and real-time updates
+- `Syncer`: Coordinates file synchronization between local filesystem and server
+- `CursorTracker`: Manages local and remote cursor positions
+- `Database`: Client-side document metadata cache
+- `FileOperations`: Abstraction layer for filesystem operations
+
+**Dual-Bundle Strategy:**
+The sync-client builds two separate bundles:
+
+- `sync-client.web.js`: Browser-compatible UMD bundle (excludes `ws` package)
+- `sync-client.node.js`: Node.js CommonJS bundle with WebSocket support
+
 ## Development Commands
 
+### Initial Setup
+
+**Node.js (requires version 25):**
+
+```bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash
+nvm install 25
+nvm use 25
+nvm alias default 25  # Optional: set as system default
+```
+
+**Rust:**
+
+```bash
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+cargo install sqlx-cli cargo-machete cargo-edit cargo-insta
+```
+
+**Frontend:**
+
+```bash
+cd frontend
+npm install
+```
+
 ### Server Development
 
 ```bash
 cd sync-server
 cargo run config-e2e.yml  # Start development server
-cargo test --verbose      # Run Rust tests
+cargo test --verbose      # Run all Rust tests
+cargo test <test_name>    # Run specific test
 cargo clippy --all-targets --all-features  # Lint Rust code
 cargo clippy --all-targets --all-features --fix --allow-dirty --allow-staged  # Auto-fix clippy warnings
 cargo fmt --all -- --check  # Check Rust formatting
@@ -42,34 +95,35 @@ cargo machete --with-metadata  # Detect unused dependencies
 cd frontend
 npm run dev      # Start development mode (watches sync-client and obsidian-plugin)
 npm run build    # Build all workspaces
-npm run test     # Run all tests
-npm run lint     # Lint and format TypeScript code
+npm run build -w sync-client     # Build specific workspace
+npm run test     # Run all tests across all workspaces
+npm run test -w sync-client      # Run tests for specific workspace
+npm run lint     # Lint and format TypeScript code with ESLint + Prettier
 ```
 
-### Database Setup (Development)
+### Database Operations
 
 ```bash
 cd sync-server
+# Create/reset database for development
+rm -rf db.sqlite*
 sqlx database create --database-url sqlite://db.sqlite3
 sqlx migrate run --source src/app_state/database/migrations --database-url sqlite://db.sqlite3
 cargo sqlx prepare --workspace
+
+# Add new migration
+sqlx migrate add --source src/app_state/database/migrations <migration_name>
+sqlx migrate run --source src/app_state/database/migrations --database-url sqlite://db.sqlite3
 ```
 
-### Initial Setup
+### Project Scripts
 
-```bash
-# Install required cargo tools
-cargo install sqlx-cli cargo-machete cargo-edit
-```
-
-### Scripts
-
-- `scripts/check.sh`: Full CI check (builds, lints, tests both server and frontend)
+- `scripts/check.sh`: Full CI check (builds, lints, tests both server and frontend). **Run before pushing.**
 - `scripts/check.sh --fix`: Same as above but auto-fixes linting and formatting issues
-- `scripts/e2e.sh`: End-to-end testing
+- `scripts/e2e.sh`: End-to-end testing (e.g., `scripts/e2e.sh 8` for 8 concurrent clients)
 - `scripts/clean-up.sh`: Clean logs and database files
-- `scripts/bump-version.sh patch`: Publish new version
-- `scripts/update-api-types.sh`: Update TypeScript bindings from Rust types
+- `scripts/bump-version.sh patch`: Publish new version (options: patch, minor, major)
+- `scripts/update-api-types.sh`: Update TypeScript bindings from Rust types (uses ts-rs)
 
 ## Code Structure
 
@@ -77,47 +131,78 @@ cargo install sqlx-cli cargo-machete cargo-edit
 
 The frontend uses npm workspaces with four packages:
 
-- `sync-client`: Core synchronization logic
+- `sync-client`: Core synchronization logic (builds dual bundles for web and Node.js)
 - `obsidian-plugin`: Obsidian-specific integration
-- `test-client`: Testing utilities
+- `test-client`: Testing utilities for E2E tests
 - `local-client-cli`: Standalone CLI for VaultLink sync client
 
-### Type Generation
+### Type Generation and API Updates
 
-Rust structs generate TypeScript types via ts-rs crate, stored in `sync-server/bindings/` and used by frontend packages.
+Rust structs generate TypeScript types via ts-rs crate:
 
-### Key Files
+1. Rust structs annotated with `#[derive(TS)]` export to `sync-server/bindings/`
+2. Run `scripts/update-api-types.sh` to copy bindings to `frontend/sync-client/src/services/types/`
+3. Frontend imports these types for type-safe API communication
 
-- `sync-server/src/`: Rust server implementation with WebSocket handlers
-- `frontend/sync-client/src/sync-client.ts`: Main sync client entry point
-- `frontend/obsidian-plugin/src/vault-link-plugin.ts`: Main Obsidian plugin class
-- `frontend/sync-client/src/services/sync-service.ts`: Core synchronization logic
+### Important Implementation Details
+
+**SQLx Compile-Time Verification:**
+
+- SQLx verifies SQL queries at compile time against the database schema
+- Run `cargo sqlx prepare --workspace` after schema changes to update `.sqlx/` directory
+- CI builds require prepared query metadata to avoid needing a live database
 
 ## Testing
 
 ### Running Tests
 
-- Server: `cargo test --verbose`
-- Frontend: `npm run test` (runs Jest across all workspaces)
-- E2E: `scripts/e2e.sh`
+**Server:**
+
+```bash
+cargo test --verbose           # All tests
+cargo test <test_name>         # Specific test
+```
+
+**Frontend:**
+
+```bash
+npm run test                   # All workspaces
+npm run test -w sync-client    # Specific workspace
+```
+
+**E2E:**
+
+```bash
+scripts/e2e.sh 8               # 8 concurrent clients
+scripts/clean-up.sh            # Clean up after tests
+```
 
 ### Test Structure
 
-- Rust: Unit tests alongside source files
-- TypeScript: `.test.ts` files using Jest
-- E2E: Uses test-client to simulate multiple concurrent users
+- **Rust**: Unit tests alongside source files, uses `cargo-insta` for snapshot testing
+- **TypeScript**: `.test.ts` files using Node.js native test runner (not Jest)
+- **E2E**: Uses `test-client` to simulate multiple concurrent users with random operations
 
-## Code Style
+## Code Style and Formatting
 
 ### Rust
 
-- Uses extensive Clippy lints (see Cargo.toml)
-- Follows pedantic linting rules
+- Extensive Clippy lints (see `Cargo.toml`)
+- Pedantic linting rules enabled
 - Forbids unsafe code
-- Uses cargo fmt with default settings
+- Uses `rustfmt.toml` for formatting configuration (4 spaces, Unix line endings)
+- Run `cargo fmt --all` to format
 
 ### TypeScript
 
-- Prettier configuration: 4-space tabs, trailing commas removed, LF line endings
-- ESLint with unused imports plugin
-- Consistent across all three frontend packages
+- **Prettier**: 4-space indentation, no trailing commas, LF line endings
+- **YAML/Markdown override**: 2-space indentation (via prettier config)
+- **ESLint**: Strict rules with unused imports detection
+- Configuration in `frontend/package.json`
+- Run `npm run lint` to format and fix issues
+
+### EditorConfig
+
+- `.editorconfig` at project root defines baseline formatting rules
+- `rustfmt.toml` and Prettier config explicitly mirror these settings
+- Both formatters enforce: 4-space indent (2 for YAML/MD), LF endings, final newline, trim trailing whitespace

frontend/local-client-cli/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:22-slim AS builder
+FROM node:25-slim AS builder
 
 WORKDIR /build
 
@@ -7,7 +7,7 @@ COPY . .
 RUN npm ci
 RUN npm run build
 
-FROM node:22-alpine
+FROM node:25-alpine
 
 LABEL org.opencontainers.image.title="VaultLink Local CLI"
 LABEL org.opencontainers.image.description="Standalone CLI for VaultLink sync client"

frontend/local-client-cli/package.json

@@ -11,11 +11,9 @@
         "build": "webpack --mode production",
         "test": "tsx --test 'src/**/*.test.ts'"
     },
-    "dependencies": {
-        "commander": "^14.0.2",
-        "watcher": "^2.3.1"
-    },
     "devDependencies": {
+        "commander": "^14.0.2",
+        "watcher": "^2.3.1",
         "@types/node": "^25.0.2",
         "sync-client": "file:../sync-client",
         "ts-loader": "^9.5.4",

frontend/local-client-cli/webpack.config.js

@@ -2,32 +2,32 @@ const path = require("path");
 const webpack = require("webpack");
 
 module.exports = {
-        entry: {
-            cli: "./src/cli.ts",
-            healthcheck: "./src/healthcheck.ts"
-        },
-        target: "node",
-        mode: "production",
-        optimization: {
-            minimize: false
-        },
-        module: {
-            rules: [
-                {
-                    test: /\.ts$/,
-                    use: "ts-loader"
-                }
-            ]
-        },
-        resolve: {
-            extensions: [".ts", ".js"]
-        },
-        output: {
-            globalObject: "this",
-            filename: "[name].js",
-            path: path.resolve(__dirname, "dist")
-        },
-        plugins: [
-        new webpack.BannerPlugin({ banner: "#!/usr/bin/env node", raw: true })
+    entry: {
+        cli: "./src/cli.ts",
+        healthcheck: "./src/healthcheck.ts"
+    },
+    target: "node",
+    mode: "production",
+    optimization: {
+        minimize: false
+    },
+    module: {
+        rules: [
+            {
+                test: /\.ts$/,
+                use: "ts-loader"
+            }
         ]
+    },
+    resolve: {
+        extensions: [".ts", ".js"]
+    },
+    output: {
+        globalObject: "this",
+        filename: "[name].js",
+        path: path.resolve(__dirname, "dist")
+    },
+    plugins: [
+        new webpack.BannerPlugin({ banner: "#!/usr/bin/env node", raw: true })
+    ]
 };

frontend/package-lock.json

@@ -22,20 +22,18 @@
         },
         "local-client-cli": {
             "version": "0.13.1",
-            "dependencies": {
-                "commander": "^14.0.2",
-                "watcher": "^2.3.1"
-            },
             "bin": {
                 "vaultlink": "dist/cli.js"
             },
             "devDependencies": {
                 "@types/node": "^25.0.2",
+                "commander": "^14.0.2",
                 "sync-client": "file:../sync-client",
                 "ts-loader": "^9.5.4",
                 "tslib": "2.8.1",
                 "tsx": "^4.21.0",
                 "typescript": "5.9.3",
+                "watcher": "^2.3.1",
                 "webpack": "^5.103.0",
                 "webpack-cli": "^6.0.1"
             }
@@ -1735,6 +1733,7 @@
             "version": "14.0.2",
             "resolved": "https://registry.npmjs.org/commander/-/commander-14.0.2.tgz",
             "integrity": "sha512-TywoWNNRbhoD0BXs1P3ZEScW8W5iKrnbithIl0YH+uCmBd0QpPOA8yc82DS3BIE5Ma6FnBVUsJ7wVUDz4dvOWQ==",
+            "dev": true,
             "license": "MIT",
             "engines": {
                 "node": ">=20"
@@ -1888,6 +1887,7 @@
             "version": "1.0.5",
             "resolved": "https://registry.npmjs.org/dettle/-/dettle-1.0.5.tgz",
             "integrity": "sha512-ZVyjhAJ7sCe1PNXEGveObOH9AC8QvMga3HJIghHawtG7mE4K5pW9nz/vDGAr/U7a3LWgdOzEE7ac9MURnyfaTA==",
+            "dev": true,
             "license": "MIT"
         },
         "node_modules/dunder-proto": {
@@ -3291,6 +3291,7 @@
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/promise-make-counter/-/promise-make-counter-1.0.2.tgz",
             "integrity": "sha512-FJAxTBWQuQoAs4ZOYuKX1FHXxEgKLEzBxUvwr4RoOglkTpOjWuM+RXsK3M9q5lMa8kjqctUrhwYeZFT4ygsnag==",
+            "dev": true,
             "license": "MIT",
             "dependencies": {
                 "promise-make-naked": "^3.0.2"
@@ -3300,6 +3301,7 @@
             "version": "3.0.2",
             "resolved": "https://registry.npmjs.org/promise-make-naked/-/promise-make-naked-3.0.2.tgz",
             "integrity": "sha512-B+b+kQ1YrYS7zO7P7bQcoqqMUizP06BOyNSBEnB5VJKDSWo8fsVuDkfSmwdjF0JsRtaNh83so5MMFJ95soH5jg==",
+            "dev": true,
             "license": "MIT"
         },
         "node_modules/punycode": {
@@ -3744,7 +3746,8 @@
         "node_modules/stubborn-fs": {
             "version": "1.2.5",
             "resolved": "https://registry.npmjs.org/stubborn-fs/-/stubborn-fs-1.2.5.tgz",
-            "integrity": "sha512-H2N9c26eXjzL/S/K+i/RHHcFanE74dptvvjM8iwzwbVcWY/zjBbgRqF3K0DY4+OD+uTTASTBvDoxPDaPN02D7g=="
+            "integrity": "sha512-H2N9c26eXjzL/S/K+i/RHHcFanE74dptvvjM8iwzwbVcWY/zjBbgRqF3K0DY4+OD+uTTASTBvDoxPDaPN02D7g==",
+            "dev": true
         },
         "node_modules/style-mod": {
             "version": "4.1.3",
@@ -3933,6 +3936,7 @@
             "version": "2.7.4",
             "resolved": "https://registry.npmjs.org/tiny-readdir/-/tiny-readdir-2.7.4.tgz",
             "integrity": "sha512-721U+zsYwDirjr8IM6jqpesD/McpZooeFi3Zc6mcjy1pse2C+v19eHPFRqz4chGXZFw7C3KITDjAtHETc2wj7Q==",
+            "dev": true,
             "license": "MIT",
             "dependencies": {
                 "promise-make-counter": "^1.0.2"
@@ -4218,6 +4222,7 @@
             "version": "2.3.1",
             "resolved": "https://registry.npmjs.org/watcher/-/watcher-2.3.1.tgz",
             "integrity": "sha512-d3yl+ey35h05r5EFP0TafE2jsmQUJ9cc2aernRVyAkZiu0J3+3TbNugNcqdUJDoWOfL2p+bNsN427stsBC/HnA==",
+            "dev": true,
             "dependencies": {
                 "dettle": "^1.0.2",
                 "stubborn-fs": "^1.2.5",
@@ -4480,28 +4485,6 @@
                 "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
             }
         },
-        "node_modules/ws": {
-            "version": "8.18.3",
-            "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.3.tgz",
-            "integrity": "sha512-PEIGCY5tSlUt50cqyMXfCzX+oOPqN0vuGqWzbcJ2xvnkzkq46oOpz7dQaTDBdfICb4N14+GARUDw2XV2N4tvzg==",
-            "dev": true,
-            "license": "MIT",
-            "engines": {
-                "node": ">=10.0.0"
-            },
-            "peerDependencies": {
-                "bufferutil": "^4.0.1",
-                "utf-8-validate": ">=5.0.2"
-            },
-            "peerDependenciesMeta": {
-                "bufferutil": {
-                    "optional": true
-                },
-                "utf-8-validate": {
-                    "optional": true
-                }
-            }
-        },
         "node_modules/y18n": {
             "version": "5.0.8",
             "dev": true,
@@ -4616,8 +4599,7 @@
                 "uuid": "^13.0.0",
                 "webpack": "^5.103.0",
                 "webpack-cli": "^6.0.1",
-                "webpack-merge": "^6.0.1",
-                "ws": "^8.18.3"
+                "webpack-merge": "^6.0.1"
             }
         },
         "sync-client/node_modules/minimatch": {

frontend/sync-client/package.json

@@ -26,7 +26,6 @@
         "webpack": "^5.103.0",
         "webpack-cli": "^6.0.1",
         "webpack-merge": "^6.0.1",
-        "@sentry/browser": "^10.30.0",
-        "ws": "^8.18.3"
+        "@sentry/browser": "^10.30.0"
     }
 }

frontend/sync-client/src/file-operations/safe-filesystem-operations.ts

@@ -2,7 +2,7 @@ import type { RelativePath } from "../persistence/database";
 import type { FileSystemOperations } from "./filesystem-operations";
 import type { Logger } from "../tracing/logger";
 import { Locks } from "../utils/data-structures/locks";
-import { FileNotFoundError } from "./file-not-found-error";
+import { FileNotFoundError } from "../errors/file-not-found-error";
 import type { TextWithCursors } from "reconcile-text";
 
 /**

frontend/sync-client/src/services/websocket-manager.test.ts

@@ -4,8 +4,6 @@ import assert from "node:assert";
 import { WebSocketManager } from "./websocket-manager";
 import type { Logger } from "../tracing/logger";
 import type { Settings } from "../persistence/settings";
-// eslint-disable-next-line @typescript-eslint/no-require-imports
-const WebSocket = require("ws") as typeof globalThis.WebSocket;
 
 class MockCloseEvent extends Event {
     public code: number;
@@ -91,10 +89,8 @@ function createMockFn<T extends (...args: unknown[]) => unknown>(
 describe("WebSocketManager", () => {
     let mockLogger: Logger = undefined as unknown as Logger;
     let mockSettings: Settings = undefined as unknown as Settings;
-    let deviceId = "test-device-123";
 
     beforeEach(() => {
-        deviceId = "test-device-123";
         const noop = (): void => {
             // Intentionally empty for mock
         };
@@ -116,7 +112,6 @@ describe("WebSocketManager", () => {
 
     it("cleans up promises after message handling", async () => {
         const manager = new WebSocketManager(
-            deviceId,
             mockLogger,
             mockSettings,
             MockWebSocket as unknown as typeof WebSocket
@@ -146,7 +141,6 @@ describe("WebSocketManager", () => {
 
     it("cleans up cursor position promises", async () => {
         const manager = new WebSocketManager(
-            deviceId,
             mockLogger,
             mockSettings,
             MockWebSocket as unknown as typeof WebSocket
@@ -176,7 +170,6 @@ describe("WebSocketManager", () => {
 
     it("logs handshake send errors", async () => {
         const manager = new WebSocketManager(
-            deviceId,
             mockLogger,
             mockSettings,
             MockWebSocket as unknown as typeof WebSocket
@@ -205,7 +198,6 @@ describe("WebSocketManager", () => {
 
     it("completes stop with timeout protection", async () => {
         const manager = new WebSocketManager(
-            deviceId,
             mockLogger,
             mockSettings,
             MockWebSocket as unknown as typeof WebSocket
@@ -220,7 +212,6 @@ describe("WebSocketManager", () => {
 
     it("clears old handlers on reconnection", async () => {
         const manager = new WebSocketManager(
-            deviceId,
             mockLogger,
             mockSettings,
             MockWebSocket as unknown as typeof WebSocket
@@ -257,7 +248,6 @@ describe("WebSocketManager", () => {
 
     it("tracks message handling promises", async () => {
         const manager = new WebSocketManager(
-            deviceId,
             mockLogger,
             mockSettings,
             MockWebSocket as unknown as typeof WebSocket

frontend/sync-client/src/services/websocket-manager.ts

@@ -31,28 +31,12 @@ export class WebSocketManager {
     private readonly outstandingPromises: Promise<unknown>[] = [];
 
     private webSocket: WebSocket | undefined;
-    private readonly webSocketFactoryImplementation: typeof globalThis.WebSocket;
 
     public constructor(
-        private readonly deviceId: string,
         private readonly logger: Logger,
         private readonly settings: Settings,
-        webSocketImplementation?: typeof globalThis.WebSocket
-    ) {
-        if (webSocketImplementation) {
-            this.webSocketFactoryImplementation = webSocketImplementation;
-        } else {
-            if (
-                typeof globalThis !== "undefined" &&
-                typeof globalThis.WebSocket === "undefined"
-            ) {
-                // eslint-disable-next-line
-                this.webSocketFactoryImplementation = require("ws"); // polyfill for WebSocket in Node.js
-            } else {
-                this.webSocketFactoryImplementation = WebSocket;
-            }
-        }
-    }
+        private readonly webSocketFactoryImplementation: typeof globalThis.WebSocket = WebSocket
+    ) {}
 
     public get isWebSocketConnected(): boolean {
         return (

frontend/sync-client/src/sync-client.ts

@@ -195,7 +195,6 @@ export class SyncClient {
         );
 
         const webSocketManager = new WebSocketManager(
-            deviceId,
             logger,
             settings,
             webSocket

frontend/sync-client/webpack.config.js

@@ -49,11 +49,6 @@ module.exports = [
                 type: "umd"
             },
             globalObject: "this"
-        },
-        resolve: {
-            fallback: {
-                ws: false // Exclude `ws` from the browser bundle
-            }
         }
     }),
     merge(common, {
@@ -62,10 +57,6 @@ module.exports = [
             path: path.resolve(__dirname, "dist"),
             filename: "sync-client.node.js",
             libraryTarget: "commonjs2"
-        },
-        externals: {
-            bufferutil: "bufferutil",
-            "utf-8-validate": "utf-8-validate" // required for ws: https://github.com/websockets/ws/issues/2245#issuecomment-2250318733
         }
     })
 ];