docs: remove references to removed npm-app and backend packages

- Update common/knowledge.md to reference web, cli, sdk packages
- Update ROADMAP.md with current Dec 2024 status
- Update authentication.knowledge.md to remove npm-app references
- Update packages/internal/src/knowledge.md package list
- Update cli/knowledge.md to remove npm-app reference
- Update knowledge.md referral system section

Author: brandonkachen

ROADMAP.md

@@ -1,6 +1,6 @@
-In general, we reevaulate plans day-by-day and thus the roadmap may change at any point.
+In general, we reevaluate plans day-by-day and thus the roadmap may change at any point.
 
-As of Oct 6th, here's what we're working on:
-- Brandon is rebuilding npm-app from the ground up with a snazzy TUI and reusing the SDK instead of a custom connection to the backend
-- Charles is moving backend logic to the SDK so more code is run locally. 
-- James is building more powerful agents, especially "base2", which is the next-gen default codebuff agent. Try it with `codebuff --experimental`!
+As of Dec 2024, here's what we're working on:
+- The CLI has been rebuilt with a modern TUI using OpenTUI and React 19
+- Core functionality has been moved to the SDK for local execution, and our CLI now fully uses it!
+- Building more powerful agents, especially "base2", which is the next-gen default codebuff agent

authentication.knowledge.md

@@ -2,13 +2,13 @@
 
 ## Overview
 
-Codebuff implements secure authentication between CLI (npm-app), backend, and web application using fingerprint-based device identification.
+Codebuff implements secure authentication between the CLI and web application using fingerprint-based device identification.
 
 ## Core Authentication Flow
 
 ```mermaid
 sequenceDiagram
-    participant CLI as npm-app
+    participant CLI as CLI
     participant Web as web app
     participant DB as Database
 
@@ -30,7 +30,7 @@ sequenceDiagram
 ### 1. First Time Login / Missing Credentials
 
 - CLI generates fingerprint from hardware info + 8 random bytes
-- Uses `calculateFingerprint()` in `npm-app/src/fingerprint.ts`
+- Uses `calculateFingerprint()` in the SDK
 - Continues to core flow with new fingerprintId
 
 ### 2. Logout Flow

cli/knowledge.md

@@ -640,7 +640,7 @@ This prevents invalid children from reaching `TextNodeRenderable` while preservi
 
 ### Slash Commands (`/`)
 
-Typing `/` opens a five-item slash menu above the input, mirroring npm-app commands.
+Typing `/` opens a five-item slash menu above the input.
 
 **Navigation**:
 

common/knowledge.md

@@ -1,6 +1,6 @@
 # Common Package Knowledge
 
-This package contains code shared between the `web` (Next.js frontend/backend) and `backend` (CLI backend) packages.
+This package contains code shared across the Codebuff monorepo, including the `web` (Next.js), `cli`, and `sdk` packages.
 
 ## Key Areas
 

knowledge.md

@@ -334,12 +334,11 @@ Important constants are centralized in `common/src/constants.ts`:
 
 ## Referral System
 
-**IMPORTANT**: Referral codes must be applied through the npm-app CLI, not through the web interface.
+**IMPORTANT**: Referral codes must be applied through the CLI, not through the web interface.
 
 - Web onboarding flow shows instructions for entering codes in CLI
 - Users must type their referral code in the Codebuff terminal after login
 - Auto-redemption during web login was removed to prevent abuse
-- The `handleReferralCode` function in `npm-app/src/client.ts` handles CLI redemption
 - The `redeemReferralCode` function in `web/src/app/api/referrals/helpers.ts` processes the actual credit granting
 
 ### OAuth Referral Code Preservation

packages/internal/src/knowledge.md

@@ -2,7 +2,7 @@
 
 ## Purpose
 
-Centralized location for internal utilities, environment configuration, and select integrations used across the Codebuff monorepo (`backend` and `web`).
+Centralized location for internal utilities, environment configuration, and select integrations used across the Codebuff monorepo (`web`, `cli`, and `sdk`).
 
 ## Structure