Reorganize src/ directory into feature/domain-based structure

Restructure flat src/ directory (17 files) into organized folders:

Structure:
- src/core/ - Main API (rondevu.ts, offer-pool.ts, types.ts, index.ts)
- src/connections/ - WebRTC connections (base.ts, offerer.ts, answerer.ts, config.ts, events.ts)
- src/api/ - HTTP layer (client.ts, batcher.ts)
- src/crypto/ - Crypto adapters (adapter.ts, node.ts, web.ts)
- src/utils/ - Utilities (async-lock.ts, exponential-backoff.ts, message-buffer.ts)

Changes:
- Move all 17 files to appropriate feature folders
- Update all import paths to reflect new structure
- Update package.json main/types to point to dist/core/index.js
- Preserve git history with git mv

Benefits:
- Clear separation of concerns
- Easier navigation and maintenance
- Better scalability for future features
- Logical grouping of related files

🤖 Generated with Claude Code

package.json

@@ -3,8 +3,8 @@
   "version": "0.20.0",
   "description": "TypeScript client for Rondevu with durable WebRTC connections, automatic reconnection, and message queuing",
   "type": "module",
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
+  "main": "dist/core/index.js",
+  "types": "dist/core/index.d.ts",
   "scripts": {
     "build": "tsc",
     "typecheck": "tsc --noEmit",

src/api/client.ts

@@ -2,12 +2,12 @@
  * Rondevu API Client - RPC interface
  */
 
-import { CryptoAdapter, Keypair } from './crypto-adapter.js'
-import { WebCryptoAdapter } from './web-crypto-adapter.js'
-import { RpcBatcher, BatcherOptions } from './rpc-batcher.js'
+import { CryptoAdapter, Keypair } from '../crypto/adapter.js'
+import { WebCryptoAdapter } from '../crypto/web.js'
+import { RpcBatcher, BatcherOptions } from './batcher.js'
 
-export type { Keypair } from './crypto-adapter.js'
-export type { BatcherOptions } from './rpc-batcher.js'
+export type { Keypair } from '../crypto/adapter.js'
+export type { BatcherOptions } from './batcher.js'
 
 export interface OfferRequest {
     sdp: string

src/connections/answerer.ts

@@ -2,10 +2,10 @@
  * Answerer-side WebRTC connection with answer creation and offer processing
  */
 
-import { RondevuConnection } from './connection.js'
-import { ConnectionState } from './connection-events.js'
-import { RondevuAPI } from './api.js'
-import { ConnectionConfig } from './connection-config.js'
+import { RondevuConnection } from './base.js'
+import { ConnectionState } from './events.js'
+import { RondevuAPI } from '../api/client.js'
+import { ConnectionConfig } from './config.js'
 
 export interface AnswererOptions {
     api: RondevuAPI

src/connections/base.ts

@@ -3,16 +3,16 @@
  */
 
 import { EventEmitter } from 'eventemitter3'
-import { ConnectionConfig, mergeConnectionConfig } from './connection-config.js'
+import { ConnectionConfig, mergeConnectionConfig } from './config.js'
 import {
     ConnectionState,
     ConnectionEventMap,
     ConnectionEventName,
     ConnectionEventArgs,
     BufferedMessage,
-} from './connection-events.js'
-import { ExponentialBackoff } from './exponential-backoff.js'
-import { MessageBuffer } from './message-buffer.js'
+} from './events.js'
+import { ExponentialBackoff } from '../utils/exponential-backoff.js'
+import { MessageBuffer } from '../utils/message-buffer.js'
 
 /**
  * Abstract base class for WebRTC connections with durability features

src/connections/offerer.ts

@@ -2,11 +2,11 @@
  * Offerer-side WebRTC connection with offer creation and answer processing
  */
 
-import { RondevuConnection } from './connection.js'
-import { ConnectionState } from './connection-events.js'
-import { RondevuAPI } from './api.js'
-import { ConnectionConfig } from './connection-config.js'
-import { AsyncLock } from './async-lock.js'
+import { RondevuConnection } from './base.js'
+import { ConnectionState } from './events.js'
+import { RondevuAPI } from '../api/client.js'
+import { ConnectionConfig } from './config.js'
+import { AsyncLock } from '../utils/async-lock.js'
 
 export interface OffererOptions {
     api: RondevuAPI

src/core/index.ts

@@ -4,21 +4,21 @@
  */
 
 export { Rondevu, RondevuError, NetworkError, ValidationError, ConnectionError } from './rondevu.js'
-export { RondevuAPI } from './api.js'
-export { RpcBatcher } from './rpc-batcher.js'
+export { RondevuAPI } from '../api/client.js'
+export { RpcBatcher } from '../api/batcher.js'
 
 // Export connection classes
-export { RondevuConnection } from './connection.js'
-export { OffererConnection } from './offerer-connection.js'
-export { AnswererConnection } from './answerer-connection.js'
+export { RondevuConnection } from '../connections/base.js'
+export { OffererConnection } from '../connections/offerer.js'
+export { AnswererConnection } from '../connections/answerer.js'
 
 // Export utilities
-export { ExponentialBackoff } from './exponential-backoff.js'
-export { MessageBuffer } from './message-buffer.js'
+export { ExponentialBackoff } from '../utils/exponential-backoff.js'
+export { MessageBuffer } from '../utils/message-buffer.js'
 
 // Export crypto adapters
-export { WebCryptoAdapter } from './web-crypto-adapter.js'
-export { NodeCryptoAdapter } from './node-crypto-adapter.js'
+export { WebCryptoAdapter } from '../crypto/web.js'
+export { NodeCryptoAdapter } from '../crypto/node.js'
 
 // Export types
 export type {
@@ -33,7 +33,7 @@ export type {
     Service,
     ServiceOffer,
     IceCandidate,
-} from './api.js'
+} from '../api/client.js'
 
 export type {
     RondevuOptions,
@@ -48,12 +48,12 @@ export type {
     PaginatedServiceResult
 } from './rondevu.js'
 
-export type { CryptoAdapter } from './crypto-adapter.js'
+export type { CryptoAdapter } from '../crypto/adapter.js'
 
 // Export connection types
 export type {
     ConnectionConfig,
-} from './connection-config.js'
+} from '../connections/config.js'
 
 export type {
     ConnectionState,
@@ -63,13 +63,13 @@ export type {
     ConnectionEventMap,
     ConnectionEventName,
     ConnectionEventArgs,
-} from './connection-events.js'
+} from '../connections/events.js'
 
 export type {
     OffererOptions,
-} from './offerer-connection.js'
+} from '../connections/offerer.js'
 
 export type {
     AnswererOptions,
-} from './answerer-connection.js'
+} from '../connections/answerer.js'
 

src/core/offer-pool.ts

@@ -1,8 +1,8 @@
 import { EventEmitter } from 'eventemitter3'
-import { RondevuAPI } from './api.js'
-import { OffererConnection } from './offerer-connection.js'
-import { ConnectionConfig } from './connection-config.js'
-import { AsyncLock } from './async-lock.js'
+import { RondevuAPI } from '../api/client.js'
+import { OffererConnection } from '../connections/offerer.js'
+import { ConnectionConfig } from '../connections/config.js'
+import { AsyncLock } from '../utils/async-lock.js'
 
 export type OfferFactory = (pc: RTCPeerConnection) => Promise<{
     dc?: RTCDataChannel

src/core/rondevu.ts

@@ -1,9 +1,9 @@
-import { RondevuAPI, Keypair, IceCandidate, BatcherOptions } from './api.js'
-import { CryptoAdapter } from './crypto-adapter.js'
+import { RondevuAPI, Keypair, IceCandidate, BatcherOptions } from '../api/client.js'
+import { CryptoAdapter } from '../crypto/adapter.js'
 import { EventEmitter } from 'eventemitter3'
-import { OffererConnection } from './offerer-connection.js'
-import { AnswererConnection } from './answerer-connection.js'
-import { ConnectionConfig } from './connection-config.js'
+import { OffererConnection } from '../connections/offerer.js'
+import { AnswererConnection } from '../connections/answerer.js'
+import { ConnectionConfig } from '../connections/config.js'
 import { OfferPool } from './offer-pool.js'
 
 // ICE server preset names

src/crypto/node.ts

@@ -4,7 +4,7 @@
  */
 
 import * as ed25519 from '@noble/ed25519'
-import { CryptoAdapter, Keypair } from './crypto-adapter.js'
+import { CryptoAdapter, Keypair } from './adapter.js'
 
 /**
  * Node.js Crypto implementation using Node.js built-in APIs

src/crypto/web.ts

@@ -3,7 +3,7 @@
  */
 
 import * as ed25519 from '@noble/ed25519'
-import { CryptoAdapter, Keypair } from './crypto-adapter.js'
+import { CryptoAdapter, Keypair } from './adapter.js'
 
 // Set SHA-512 hash function for ed25519 (required in @noble/ed25519 v3+)
 ed25519.hashes.sha512Async = async (message: Uint8Array) => {

src/utils/message-buffer.ts

@@ -2,7 +2,7 @@
  * Message buffering system for storing messages during disconnections
  */
 
-import { BufferedMessage } from './connection-events.js'
+import { BufferedMessage } from '../connections/events.js'
 
 export interface MessageBufferConfig {
     maxSize: number       // Maximum number of messages to buffer