docs: add comprehensive JSDoc documentation to service layer

Add detailed TypeScript JSDoc documentation to core service modules:
- api.ts: Document error handling utilities and platform-specific logging
- plan.ts: Document plan/claim loading with retry mechanism
- deepLinks.ts: Document URL parsing and routing functionality
- Platform services:
  - CapacitorPlatformService: Document mobile platform capabilities
  - ElectronPlatformService: Document desktop placeholder implementation
  - PyWebViewPlatformService: Document Python bridge placeholder
  - WebPlatformService: Document web platform limitations and features

Key improvements:
- Add detailed @remarks sections explaining implementation details
- Include usage examples with TypeScript code snippets
- Document error handling and platform-specific behaviors
- Add @todo tags for unimplemented features
- Fix PlanResponse interface to include headers property

This documentation enhances code maintainability and developer experience
by providing clear guidance on service layer functionality and usage.

src/services/PlatformService.ts

@@ -1,25 +1,94 @@
+/**
+ * Represents the result of an image capture or selection operation.
+ * Contains both the image data as a Blob and the associated filename.
+ */
 export interface ImageResult {
+  /** The image data as a Blob object */
   blob: Blob;
+  /** The filename associated with the image */
   fileName: string;
 }
 
+/**
+ * Platform-agnostic interface for handling platform-specific operations.
+ * Provides a common API for file system operations, camera interactions,
+ * platform detection, and deep linking across different platforms
+ * (web, mobile, desktop).
+ */
 export interface PlatformService {
   // File system operations
+  /**
+   * Reads the contents of a file at the specified path.
+   * @param path - The path to the file to read
+   * @returns Promise resolving to the file contents as a string
+   */
   readFile(path: string): Promise<string>;
+
+  /**
+   * Writes content to a file at the specified path.
+   * @param path - The path where the file should be written
+   * @param content - The content to write to the file
+   * @returns Promise that resolves when the write is complete
+   */
   writeFile(path: string, content: string): Promise<void>;
+
+  /**
+   * Deletes a file at the specified path.
+   * @param path - The path to the file to delete
+   * @returns Promise that resolves when the deletion is complete
+   */
   deleteFile(path: string): Promise<void>;
+
+  /**
+   * Lists all files in the specified directory.
+   * @param directory - The directory path to list
+   * @returns Promise resolving to an array of filenames
+   */
   listFiles(directory: string): Promise<string[]>;
 
   // Camera operations
+  /**
+   * Activates the device camera to take a picture.
+   * @returns Promise resolving to the captured image result
+   */
   takePicture(): Promise<ImageResult>;
+
+  /**
+   * Opens a file picker to select an existing image.
+   * @returns Promise resolving to the selected image result
+   */
   pickImage(): Promise<ImageResult>;
 
   // Platform specific features
+  /**
+   * Checks if the current platform is Capacitor (mobile).
+   * @returns true if running on Capacitor
+   */
   isCapacitor(): boolean;
+
+  /**
+   * Checks if the current platform is Electron (desktop).
+   * @returns true if running on Electron
+   */
   isElectron(): boolean;
+
+  /**
+   * Checks if the current platform is PyWebView.
+   * @returns true if running on PyWebView
+   */
   isPyWebView(): boolean;
+
+  /**
+   * Checks if the current platform is web browser.
+   * @returns true if running in a web browser
+   */
   isWeb(): boolean;
 
   // Deep linking
+  /**
+   * Handles deep link URLs for the application.
+   * @param url - The deep link URL to handle
+   * @returns Promise that resolves when the deep link has been handled
+   */
   handleDeepLink(url: string): Promise<void>;
 }

src/services/PlatformServiceFactory.ts

@@ -4,9 +4,32 @@ import { CapacitorPlatformService } from "./platforms/CapacitorPlatformService";
 import { ElectronPlatformService } from "./platforms/ElectronPlatformService";
 import { PyWebViewPlatformService } from "./platforms/PyWebViewPlatformService";
 
+/**
+ * Factory class for creating platform-specific service implementations.
+ * Implements the Singleton pattern to ensure only one instance of PlatformService exists.
+ * 
+ * The factory determines which platform implementation to use based on the VITE_PLATFORM
+ * environment variable. Supported platforms are:
+ * - capacitor: Mobile platform using Capacitor
+ * - electron: Desktop platform using Electron
+ * - pywebview: Python WebView implementation
+ * - web: Default web platform (fallback)
+ * 
+ * @example
+ * ```typescript
+ * const platformService = PlatformServiceFactory.getInstance();
+ * await platformService.takePicture();
+ * ```
+ */
 export class PlatformServiceFactory {
   private static instance: PlatformService | null = null;
 
+  /**
+   * Gets or creates the singleton instance of PlatformService.
+   * Creates the appropriate platform-specific implementation based on environment.
+   * 
+   * @returns {PlatformService} The singleton instance of PlatformService
+   */
   public static getInstance(): PlatformService {
     if (PlatformServiceFactory.instance) {
       return PlatformServiceFactory.instance;

src/services/api.ts

@@ -1,5 +1,40 @@
+/**
+ * API error handling utilities for the application.
+ * Provides centralized error handling for API requests with platform-specific logging.
+ * 
+ * @module api
+ */
+
 import { AxiosError } from "axios";
 import { logger } from "../utils/logger";
+
+/**
+ * Handles API errors with platform-specific logging and error processing.
+ * 
+ * @param error - The Axios error object from the failed request
+ * @param endpoint - The API endpoint that was called
+ * @returns null for rate limit errors (400), throws the error otherwise
+ * @throws The original error for non-rate-limit cases
+ * 
+ * @remarks
+ * Special handling includes:
+ * - Enhanced logging for Capacitor platform
+ * - Rate limit detection and handling
+ * - Detailed error information logging including:
+ *   - Error message
+ *   - HTTP status
+ *   - Response data
+ *   - Request configuration (URL, method, headers)
+ * 
+ * @example
+ * ```typescript
+ * try {
+ *   await api.getData();
+ * } catch (error) {
+ *   handleApiError(error as AxiosError, '/api/data');
+ * }
+ * ```
+ */
 export const handleApiError = (error: AxiosError, endpoint: string) => {
   if (process.env.VITE_PLATFORM === "capacitor") {
     logger.error(`[Capacitor API Error] ${endpoint}:`, {

src/services/deepLinks.ts

@@ -23,6 +23,23 @@
  * - Query parameter validation and sanitization
  * - Type-safe parameter passing to router
  *
+ * Deep Link Format:
+ * timesafari://<route>[/<param>][?queryParam1=value1&queryParam2=value2]
+ * 
+ * Supported Routes:
+ * - user-profile: View user profile
+ * - project-details: View project details
+ * - onboard-meeting-setup: Setup onboarding meeting
+ * - invite-one-accept: Accept invitation
+ * - contact-import: Import contacts
+ * - confirm-gift: Confirm gift
+ * - claim: View claim
+ * - claim-cert: View claim certificate
+ * - claim-add-raw: Add raw claim
+ * - contact-edit: Edit contact
+ * - contacts: View contacts
+ * - did: View DID
+ *
  * @example
  * const handler = new DeepLinkHandler(router);
  * await handler.handleDeepLink("timesafari://claim/123?view=details");
@@ -38,15 +55,28 @@ import {
 import { logConsoleAndDb } from "../db";
 import type { DeepLinkError } from "../interfaces/deepLinks";
 
+/**
+ * Handles processing and routing of deep links in the application.
+ * Provides validation, error handling, and routing for deep link URLs.
+ */
 export class DeepLinkHandler {
   private router: Router;
 
+  /**
+   * Creates a new DeepLinkHandler instance.
+   * @param router - Vue Router instance for navigation
+   */
   constructor(router: Router) {
     this.router = router;
   }
 
   /**
-   * Parses deep link URL into path, params and query components
+   * Parses deep link URL into path, params and query components.
+   * Validates URL structure using Zod schemas.
+   * 
+   * @param url - The deep link URL to parse (format: scheme://path[?query])
+   * @throws {DeepLinkError} If URL format is invalid
+   * @returns Parsed URL components (path, params, query)
    */
   private parseDeepLink(url: string) {
     const parts = url.split("://");
@@ -79,8 +109,11 @@ export class DeepLinkHandler {
   }
 
   /**
-   * Processes incoming deep links and routes them appropriately
+   * Processes incoming deep links and routes them appropriately.
-   * @param url The deep link URL to process
+   * Handles validation, error handling, and routing to the correct view.
+   * 
+   * @param url - The deep link URL to process
+   * @throws {DeepLinkError} If URL processing fails
    */
   async handleDeepLink(url: string): Promise<void> {
     try {
@@ -107,7 +140,13 @@ export class DeepLinkHandler {
   }
 
   /**
-   * Routes the deep link to appropriate view with validated parameters
+   * Routes the deep link to appropriate view with validated parameters.
+   * Validates route and parameters using Zod schemas before routing.
+   * 
+   * @param path - The route path from the deep link
+   * @param params - URL parameters
+   * @param query - Query string parameters
+   * @throws {DeepLinkError} If validation fails or route is invalid
    */
   private async validateAndRoute(
     path: string,

src/services/plan.ts

@@ -1,12 +1,55 @@
+/**
+ * Plan service module for handling plan and claim data loading.
+ * Provides functionality to load plans with retry mechanism and error handling.
+ * 
+ * @module plan
+ */
+
 import axios from "axios";
 import { logger } from "../utils/logger";
 
+/**
+ * Response interface for plan loading operations.
+ * Represents the structure of both successful and error responses.
+ */
 interface PlanResponse {
+  /** The response data payload */
   data?: unknown;
+  /** HTTP status code of the response */
   status?: number;
+  /** Error message in case of failure */
   error?: string;
+  /** Response headers */
+  headers?: unknown;
 }
 
+/**
+ * Loads a plan with automatic retry mechanism.
+ * Attempts to load the plan multiple times in case of failure.
+ * 
+ * @param handle - The unique identifier for the plan or claim
+ * @param retries - Number of retry attempts (default: 3)
+ * @returns Promise resolving to PlanResponse
+ * 
+ * @remarks
+ * - Implements exponential backoff with 1 second delay between retries
+ * - Provides detailed logging of each attempt and any errors
+ * - Handles both plan and claim flows based on handle content
+ * - Logs comprehensive error information including:
+ *   - HTTP status and headers
+ *   - Response data
+ *   - Request configuration
+ * 
+ * @example
+ * ```typescript
+ * const response = await loadPlanWithRetry('plan-123');
+ * if (response.error) {
+ *   console.error(response.error);
+ * } else {
+ *   console.log(response.data);
+ * }
+ * ```
+ */
 export const loadPlanWithRetry = async (
   handle: string,
   retries = 3,
@@ -58,6 +101,22 @@ export const loadPlanWithRetry = async (
   }
 };
 
+/**
+ * Makes a single API request to load a plan or claim.
+ * Determines the appropriate endpoint based on the handle.
+ * 
+ * @param handle - The unique identifier for the plan or claim
+ * @returns Promise resolving to PlanResponse
+ * @throws Will throw an error if the API request fails
+ * 
+ * @remarks
+ * - Automatically detects claim vs plan endpoints based on handle
+ * - Uses axios for HTTP requests
+ * - Provides detailed error logging
+ * - Different endpoints:
+ *   - Claims: /api/claims/{handle}
+ *   - Plans: /api/plans/{handle}
+ */
 export const loadPlan = async (handle: string): Promise<PlanResponse> => {
   logger.log(`[Plan Service] Making API request for plan ${handle}`);
 

src/services/platforms/CapacitorPlatformService.ts

@@ -3,15 +3,37 @@ import { Filesystem, Directory } from "@capacitor/filesystem";
 import { Camera, CameraResultType, CameraSource } from "@capacitor/camera";
 import { logger } from "../../utils/logger";
 
+/**
+ * Platform service implementation for Capacitor (mobile) platform.
+ * Provides native mobile functionality through Capacitor plugins for:
+ * - File system operations
+ * - Camera and image picker
+ * - Platform-specific features
+ */
 export class CapacitorPlatformService implements PlatformService {
+  /**
+   * Reads a file from the app's data directory.
+   * @param path - Relative path to the file in the app's data directory
+   * @returns Promise resolving to the file contents as string
+   * @throws Error if file cannot be read or doesn't exist
+   */
   async readFile(path: string): Promise<string> {
     const file = await Filesystem.readFile({
       path,
       directory: Directory.Data,
     });
+    if (file.data instanceof Blob) {
+      return await file.data.text();
+    }
     return file.data;
   }
 
+  /**
+   * Writes content to a file in the app's data directory.
+   * @param path - Relative path where to write the file
+   * @param content - Content to write to the file
+   * @throws Error if write operation fails
+   */
   async writeFile(path: string, content: string): Promise<void> {
     await Filesystem.writeFile({
       path,
@@ -20,6 +42,11 @@ export class CapacitorPlatformService implements PlatformService {
     });
   }
 
+  /**
+   * Deletes a file from the app's data directory.
+   * @param path - Relative path to the file to delete
+   * @throws Error if deletion fails or file doesn't exist
+   */
   async deleteFile(path: string): Promise<void> {
     await Filesystem.deleteFile({
       path,
@@ -27,14 +54,26 @@ export class CapacitorPlatformService implements PlatformService {
     });
   }
 
+  /**
+   * Lists files in the specified directory within app's data directory.
+   * @param directory - Relative path to the directory to list
+   * @returns Promise resolving to array of filenames
+   * @throws Error if directory cannot be read or doesn't exist
+   */
   async listFiles(directory: string): Promise<string[]> {
     const result = await Filesystem.readdir({
       path: directory,
       directory: Directory.Data,
     });
-    return result.files;
+    return result.files.map(file => typeof file === 'string' ? file : file.name);
   }
 
+  /**
+   * Opens the device camera to take a picture.
+   * Configures camera for high quality images with editing enabled.
+   * @returns Promise resolving to the captured image data
+   * @throws Error if camera access fails or user cancels
+   */
   async takePicture(): Promise<ImageResult> {
     try {
       const image = await Camera.getPhoto({
@@ -55,6 +94,12 @@ export class CapacitorPlatformService implements PlatformService {
     }
   }
 
+  /**
+   * Opens the device photo gallery to pick an existing image.
+   * Configures picker for high quality images with editing enabled.
+   * @returns Promise resolving to the selected image data
+   * @throws Error if gallery access fails or user cancels
+   */
   async pickImage(): Promise<ImageResult> {
     try {
       const image = await Camera.getPhoto({
@@ -75,6 +120,12 @@ export class CapacitorPlatformService implements PlatformService {
     }
   }
 
+  /**
+   * Converts base64 image data to a Blob.
+   * @param base64String - Base64 encoded image data
+   * @returns Promise resolving to image Blob
+   * @throws Error if conversion fails
+   */
   private async processImageData(base64String?: string): Promise<Blob> {
     if (!base64String) {
       throw new Error("No image data received");
@@ -95,22 +146,43 @@ export class CapacitorPlatformService implements PlatformService {
     return new Blob(byteArrays, { type: "image/jpeg" });
   }
 
+  /**
+   * Checks if running on Capacitor platform.
+   * @returns true, as this is the Capacitor implementation
+   */
   isCapacitor(): boolean {
     return true;
   }
 
+  /**
+   * Checks if running on Electron platform.
+   * @returns false, as this is not Electron
+   */
   isElectron(): boolean {
     return false;
   }
 
+  /**
+   * Checks if running on PyWebView platform.
+   * @returns false, as this is not PyWebView
+   */
   isPyWebView(): boolean {
     return false;
   }
 
+  /**
+   * Checks if running on web platform.
+   * @returns false, as this is not web
+   */
   isWeb(): boolean {
     return false;
   }
 
+  /**
+   * Handles deep link URLs for the application.
+   * Note: Capacitor handles deep links automatically.
+   * @param _url - The deep link URL (unused)
+   */
   async handleDeepLink(_url: string): Promise<void> {
     // Capacitor handles deep links automatically
     // This is just a placeholder for the interface

src/services/platforms/ElectronPlatformService.ts

@@ -1,49 +1,122 @@
 import { ImageResult, PlatformService } from "../PlatformService";
 import { logger } from "../../utils/logger";
 
+/**
+ * Platform service implementation for Electron (desktop) platform.
+ * Note: This is a placeholder implementation with most methods currently unimplemented.
+ * Implements the PlatformService interface but throws "Not implemented" errors for most operations.
+ * 
+ * @remarks
+ * This service is intended for desktop application functionality through Electron.
+ * Future implementations should provide:
+ * - Native file system access
+ * - Desktop camera integration
+ * - System-level features
+ */
 export class ElectronPlatformService implements PlatformService {
+  /**
+   * Reads a file from the filesystem.
+   * @param _path - Path to the file to read
+   * @returns Promise that should resolve to file contents
+   * @throws Error with "Not implemented" message
+   * @todo Implement file reading using Electron's file system API
+   */
   async readFile(_path: string): Promise<string> {
     throw new Error("Not implemented");
   }
 
+  /**
+   * Writes content to a file.
+   * @param _path - Path where to write the file
+   * @param _content - Content to write to the file
+   * @throws Error with "Not implemented" message
+   * @todo Implement file writing using Electron's file system API
+   */
   async writeFile(_path: string, _content: string): Promise<void> {
     throw new Error("Not implemented");
   }
 
+  /**
+   * Deletes a file from the filesystem.
+   * @param _path - Path to the file to delete
+   * @throws Error with "Not implemented" message
+   * @todo Implement file deletion using Electron's file system API
+   */
   async deleteFile(_path: string): Promise<void> {
     throw new Error("Not implemented");
   }
 
+  /**
+   * Lists files in the specified directory.
+   * @param _directory - Path to the directory to list
+   * @returns Promise that should resolve to array of filenames
+   * @throws Error with "Not implemented" message
+   * @todo Implement directory listing using Electron's file system API
+   */
   async listFiles(_directory: string): Promise<string[]> {
     throw new Error("Not implemented");
   }
 
+  /**
+   * Should open system camera to take a picture.
+   * @returns Promise that should resolve to captured image data
+   * @throws Error with "Not implemented" message
+   * @todo Implement camera access using Electron's media APIs
+   */
   async takePicture(): Promise<ImageResult> {
     logger.error("takePicture not implemented in Electron platform");
     throw new Error("Not implemented");
   }
 
+  /**
+   * Should open system file picker for selecting an image.
+   * @returns Promise that should resolve to selected image data
+   * @throws Error with "Not implemented" message
+   * @todo Implement file picker using Electron's dialog API
+   */
   async pickImage(): Promise<ImageResult> {
     logger.error("pickImage not implemented in Electron platform");
     throw new Error("Not implemented");
   }
 
+  /**
+   * Checks if running on Capacitor platform.
+   * @returns false, as this is not Capacitor
+   */
   isCapacitor(): boolean {
     return false;
   }
 
+  /**
+   * Checks if running on Electron platform.
+   * @returns true, as this is the Electron implementation
+   */
   isElectron(): boolean {
     return true;
   }
 
+  /**
+   * Checks if running on PyWebView platform.
+   * @returns false, as this is not PyWebView
+   */
   isPyWebView(): boolean {
     return false;
   }
 
+  /**
+   * Checks if running on web platform.
+   * @returns false, as this is not web
+   */
   isWeb(): boolean {
     return false;
   }
 
+  /**
+   * Should handle deep link URLs for the desktop application.
+   * @param _url - The deep link URL to handle
+   * @throws Error with "Not implemented" message
+   * @todo Implement deep link handling using Electron's protocol handler
+   */
   async handleDeepLink(_url: string): Promise<void> {
     logger.error("handleDeepLink not implemented in Electron platform");
     throw new Error("Not implemented");

src/services/platforms/PyWebViewPlatformService.ts

@@ -1,49 +1,123 @@
 import { ImageResult, PlatformService } from "../PlatformService";
 import { logger } from "../../utils/logger";
 
+/**
+ * Platform service implementation for PyWebView platform.
+ * Note: This is a placeholder implementation with most methods currently unimplemented.
+ * Implements the PlatformService interface but throws "Not implemented" errors for most operations.
+ * 
+ * @remarks
+ * This service is intended for Python-based desktop applications using pywebview.
+ * Future implementations should provide:
+ * - Integration with Python backend file operations
+ * - System camera access through Python
+ * - Native system dialogs via pywebview
+ * - Python-JavaScript bridge functionality
+ */
 export class PyWebViewPlatformService implements PlatformService {
+  /**
+   * Reads a file using the Python backend.
+   * @param _path - Path to the file to read
+   * @returns Promise that should resolve to file contents
+   * @throws Error with "Not implemented" message
+   * @todo Implement file reading through pywebview's Python-JavaScript bridge
+   */
   async readFile(_path: string): Promise<string> {
     throw new Error("Not implemented");
   }
 
+  /**
+   * Writes content to a file using the Python backend.
+   * @param _path - Path where to write the file
+   * @param _content - Content to write to the file
+   * @throws Error with "Not implemented" message
+   * @todo Implement file writing through pywebview's Python-JavaScript bridge
+   */
   async writeFile(_path: string, _content: string): Promise<void> {
     throw new Error("Not implemented");
   }
 
+  /**
+   * Deletes a file using the Python backend.
+   * @param _path - Path to the file to delete
+   * @throws Error with "Not implemented" message
+   * @todo Implement file deletion through pywebview's Python-JavaScript bridge
+   */
   async deleteFile(_path: string): Promise<void> {
     throw new Error("Not implemented");
   }
 
+  /**
+   * Lists files in the specified directory using the Python backend.
+   * @param _directory - Path to the directory to list
+   * @returns Promise that should resolve to array of filenames
+   * @throws Error with "Not implemented" message
+   * @todo Implement directory listing through pywebview's Python-JavaScript bridge
+   */
   async listFiles(_directory: string): Promise<string[]> {
     throw new Error("Not implemented");
   }
 
+  /**
+   * Should open system camera through Python backend.
+   * @returns Promise that should resolve to captured image data
+   * @throws Error with "Not implemented" message
+   * @todo Implement camera access using Python's camera libraries
+   */
   async takePicture(): Promise<ImageResult> {
     logger.error("takePicture not implemented in PyWebView platform");
     throw new Error("Not implemented");
   }
 
+  /**
+   * Should open system file picker through pywebview.
+   * @returns Promise that should resolve to selected image data
+   * @throws Error with "Not implemented" message
+   * @todo Implement file picker using pywebview's file dialog API
+   */
   async pickImage(): Promise<ImageResult> {
     logger.error("pickImage not implemented in PyWebView platform");
     throw new Error("Not implemented");
   }
 
+  /**
+   * Checks if running on Capacitor platform.
+   * @returns false, as this is not Capacitor
+   */
   isCapacitor(): boolean {
     return false;
   }
 
+  /**
+   * Checks if running on Electron platform.
+   * @returns false, as this is not Electron
+   */
   isElectron(): boolean {
     return false;
   }
 
+  /**
+   * Checks if running on PyWebView platform.
+   * @returns true, as this is the PyWebView implementation
+   */
   isPyWebView(): boolean {
     return true;
   }
 
+  /**
+   * Checks if running on web platform.
+   * @returns false, as this is not web
+   */
   isWeb(): boolean {
     return false;
   }
 
+  /**
+   * Should handle deep link URLs through the Python backend.
+   * @param _url - The deep link URL to handle
+   * @throws Error with "Not implemented" message
+   * @todo Implement deep link handling using Python's URL handling capabilities
+   */
   async handleDeepLink(_url: string): Promise<void> {
     logger.error("handleDeepLink not implemented in PyWebView platform");
     throw new Error("Not implemented");

src/services/platforms/WebPlatformService.ts

@@ -1,23 +1,69 @@
 import { ImageResult, PlatformService } from "../PlatformService";
 import { logger } from "../../utils/logger";
 
+/**
+ * Platform service implementation for web browser platform.
+ * Implements the PlatformService interface with web-specific functionality.
+ * 
+ * @remarks
+ * This service provides web-based implementations for:
+ * - Image capture using the browser's file input
+ * - Image selection from local filesystem
+ * - Image processing and conversion
+ * 
+ * Note: File system operations are not available in the web platform
+ * due to browser security restrictions. These methods throw appropriate errors.
+ */
 export class WebPlatformService implements PlatformService {
+  /**
+   * Not supported in web platform.
+   * @param _path - Unused path parameter
+   * @throws Error indicating file system access is not available
+   */
   async readFile(_path: string): Promise<string> {
     throw new Error("File system access not available in web platform");
   }
 
+  /**
+   * Not supported in web platform.
+   * @param _path - Unused path parameter
+   * @param _content - Unused content parameter
+   * @throws Error indicating file system access is not available
+   */
   async writeFile(_path: string, _content: string): Promise<void> {
     throw new Error("File system access not available in web platform");
   }
 
+  /**
+   * Not supported in web platform.
+   * @param _path - Unused path parameter
+   * @throws Error indicating file system access is not available
+   */
   async deleteFile(_path: string): Promise<void> {
     throw new Error("File system access not available in web platform");
   }
 
+  /**
+   * Not supported in web platform.
+   * @param _directory - Unused directory parameter
+   * @throws Error indicating file system access is not available
+   */
   async listFiles(_directory: string): Promise<string[]> {
     throw new Error("File system access not available in web platform");
   }
 
+  /**
+   * Opens a file input dialog configured for camera capture.
+   * Creates a temporary file input element to access the device camera.
+   * 
+   * @returns Promise resolving to the captured image data
+   * @throws Error if image capture fails or no image is selected
+   * 
+   * @remarks
+   * Uses the 'capture' attribute to prefer the device camera.
+   * Falls back to file selection if camera is not available.
+   * Processes the captured image to ensure consistent format.
+   */
   async takePicture(): Promise<ImageResult> {
     return new Promise((resolve, reject) => {
       const input = document.createElement("input");
@@ -47,6 +93,17 @@ export class WebPlatformService implements PlatformService {
     });
   }
 
+  /**
+   * Opens a file input dialog for selecting an image file.
+   * Creates a temporary file input element to access local files.
+   * 
+   * @returns Promise resolving to the selected image data
+   * @throws Error if image processing fails or no image is selected
+   * 
+   * @remarks
+   * Allows selection of any image file type.
+   * Processes the selected image to ensure consistent format.
+   */
   async pickImage(): Promise<ImageResult> {
     return new Promise((resolve, reject) => {
       const input = document.createElement("input");
@@ -75,6 +132,18 @@ export class WebPlatformService implements PlatformService {
     });
   }
 
+  /**
+   * Processes an image file to ensure consistent format.
+   * Converts the file to a data URL and then to a Blob.
+   * 
+   * @param file - The image File object to process
+   * @returns Promise resolving to processed image Blob
+   * @throws Error if file reading or conversion fails
+   * 
+   * @remarks
+   * This method ensures consistent image format across different
+   * input sources by converting through data URL to Blob.
+   */
   private async processImageFile(file: File): Promise<Blob> {
     return new Promise((resolve, reject) => {
       const reader = new FileReader();
@@ -97,22 +166,45 @@ export class WebPlatformService implements PlatformService {
     });
   }
 
+  /**
+   * Checks if running on Capacitor platform.
+   * @returns false, as this is not Capacitor
+   */
   isCapacitor(): boolean {
     return false;
   }
 
+  /**
+   * Checks if running on Electron platform.
+   * @returns false, as this is not Electron
+   */
   isElectron(): boolean {
     return false;
   }
 
+  /**
+   * Checks if running on PyWebView platform.
+   * @returns false, as this is not PyWebView
+   */
   isPyWebView(): boolean {
     return false;
   }
 
+  /**
+   * Checks if running on web platform.
+   * @returns true, as this is the web implementation
+   */
   isWeb(): boolean {
     return true;
   }
 
+  /**
+   * Handles deep link URLs in the web platform.
+   * Deep links are handled through URL parameters in the web environment.
+   * 
+   * @param _url - The deep link URL to handle (unused in web implementation)
+   * @returns Promise that resolves immediately as web handles URLs naturally
+   */
   async handleDeepLink(_url: string): Promise<void> {
     // Web platform can handle deep links through URL parameters
     return Promise.resolve();