Update auth references from JWT to session tokens

- Remove previous_token_grace_until from RotateApiTokenResponse
- Update setToken JSDoc and CLI help text
- Update README auth documentation

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

README.md

@@ -93,10 +93,10 @@ const client = new ElydoraClient({
 ### Authentication
 
 ```typescript
-// Register a new user and organization
+// Register a new user and organization (returns session token)
 const reg = await ElydoraClient.register(baseUrl, email, password, displayName?, orgName?);
 
-// Login and receive a JWT
+// Login and receive a session token
 const auth = await ElydoraClient.login(baseUrl, email, password);
 
 // Set token on client

src/cli.ts

@@ -41,7 +41,7 @@ function printUsage(): void {
   console.log(`Elydora CLI — Tamper-evident audit for AI coding agents
 
 Usage:
-  elydora install   --agent <name> --org_id <id> --agent_id <id> --private_key <key> --kid <kid> [--token <jwt>] [--base_url <url>]
+  elydora install   --agent <name> --org_id <id> --agent_id <id> --private_key <key> --kid <kid> [--token <token>] [--base_url <url>]
   elydora uninstall --agent <name> [--agent_id <id>]
   elydora status
   elydora agents

src/client.ts

@@ -66,7 +66,7 @@ export class ElydoraClient {
   }
 
   /**
-   * Set the JWT token used for authenticated API calls.
+   * Set the API token used for authenticated API calls.
    */
   setToken(token: string): void {
     this.token = token;

src/types.ts

@@ -273,7 +273,6 @@ export interface RotateApiTokenResponse {
   readonly token: string;
   readonly expires_at: number | null;
   readonly token_id: string;
-  readonly previous_token_grace_until: number;
 }
 
 export interface HealthResponse {