fix: update all branding from lumbridgecorp to karti-ai

docs/MIGRATION.md

@@ -21,7 +21,7 @@ The Enhanced Mattermost Extension is a drop-in replacement for the stock extensi
 
 | Aspect | Stock Extension | Enhanced Extension |
 |--------|--------------|-------------------|
-| Package name | `@modelcontextprotocol/mattermost` | `@lumbridgecorp/openclaw-mattermost` |
+| Package name | `@modelcontextprotocol/mattermost` | `@karti-ai/openclaw-mattermost` |
 | Token support | Bot token only | Bot token + PAT |
 | Message operations | Send only | Send, edit, delete |
 | File operations | None | Download with security |
@@ -45,7 +45,7 @@ Run this check to see if your current configuration is compatible:
 
 ```bash
 # Install the enhanced extension alongside your current one
-npm install @lumbridgecorp/openclaw-mattermost
+npm install @karti-ai/openclaw-mattermost
 
 # Run the security audit to check configuration
 npx openclaw doctor --channel=mattermost
@@ -61,7 +61,7 @@ If you're using basic features, simply update your package.json:
 {
   "dependencies": {
 -   "@modelcontextprotocol/mattermost": "^0.x.x"
-+   "@lumbridgecorp/openclaw-mattermost": "^1.0.0"
++   "@karti-ai/openclaw-mattermost": "^1.0.0"
   }
 }
 ```
@@ -161,7 +161,7 @@ import { sendMessage } from '@modelcontextprotocol/mattermost';
 
 **After:**
 ```typescript
-import { sendMessage } from '@lumbridgecorp/openclaw-mattermost';
+import { sendMessage } from '@karti-ai/openclaw-mattermost';
 ```
 
 ### 2. Configuration Property Names
@@ -196,7 +196,7 @@ import { MattermostConfig } from '@modelcontextprotocol/mattermost';
 
 **After:**
 ```typescript
-import { MattermostAccountConfig, MattermostConfig } from '@lumbridgecorp/openclaw-mattermost';
+import { MattermostAccountConfig, MattermostConfig } from '@karti-ai/openclaw-mattermost';
 ```
 
 ## Feature Upgrades
@@ -268,7 +268,7 @@ File downloads are enabled by default but can be controlled:
 
 ```typescript
 // Both versions work the same
-import { sendMessage } from '@lumbridgecorp/openclaw-mattermost';
+import { sendMessage } from '@karti-ai/openclaw-mattermost';
 
 await sendMessage({
   cfg: openclawConfig,
@@ -284,7 +284,7 @@ await sendMessage({
 **After:** Full support with type safety
 
 ```typescript
-import { addReaction } from '@lumbridgecorp/openclaw-mattermost';
+import { addReaction } from '@karti-ai/openclaw-mattermost';
 
 await addReaction({
   cfg: openclawConfig,
@@ -296,7 +296,7 @@ await addReaction({
 ### Editing Messages (New Feature)
 
 ```typescript
-import { editMessage } from '@lumbridgecorp/openclaw-mattermost';
+import { editMessage } from '@karti-ai/openclaw-mattermost';
 
 const result = await editMessage({
   cfg: openclawConfig,
@@ -324,7 +324,7 @@ await sendMessage({ cfg: openclawConfig, channelId: 'channel123', message });
 ### File Downloads (New Feature)
 
 ```typescript
-import { downloadFile } from '@lumbridgecorp/openclaw-mattermost';
+import { downloadFile } from '@karti-ai/openclaw-mattermost';
 
 const result = await downloadFile({
   cfg: openclawConfig,
@@ -353,7 +353,7 @@ try {
 **After:** Structured error handling with retry
 
 ```typescript
-import { MattermostError, isRetryableError } from '@lumbridgecorp/openclaw-mattermost';
+import { MattermostError, isRetryableError } from '@karti-ai/openclaw-mattermost';
 
 try {
   await sendMessage({ cfg, channelId, message });
@@ -379,7 +379,7 @@ After migration, verify everything works:
 ### 1. Run the Security Audit
 
 ```typescript
-import { collectMattermostSecurityAuditFindings } from '@lumbridgecorp/openclaw-mattermost';
+import { collectMattermostSecurityAuditFindings } from '@karti-ai/openclaw-mattermost';
 
 const findings = await collectMattermostSecurityAuditFindings({
   cfg: openclawConfig,
@@ -442,7 +442,7 @@ If you need to rollback to the stock extension:
 ### Step 1: Revert Package
 
 ```bash
-npm uninstall @lumbridgecorp/openclaw-mattermost
+npm uninstall @karti-ai/openclaw-mattermost
 npm install @modelcontextprotocol/mattermost
 ```
 
@@ -472,7 +472,7 @@ Remove any enhanced-specific configuration:
 Change imports back:
 
 ```diff
-- import { sendMessage } from '@lumbridgecorp/openclaw-mattermost';
+- import { sendMessage } from '@karti-ai/openclaw-mattermost';
 + import { sendMessage } from '@modelcontextprotocol/mattermost';
 ```
 
@@ -490,7 +490,7 @@ Remove any code using enhanced-only features:
 **Solution:** Ensure the package is installed:
 
 ```bash
-npm install @lumbridgecorp/openclaw-mattermost
+npm install @karti-ai/openclaw-mattermost
 ```
 
 ### Issue: "Configuration validation failed"
@@ -498,7 +498,7 @@ npm install @lumbridgecorp/openclaw-mattermost
 **Solution:** Check for legacy configuration properties:
 
 ```typescript
-import { MattermostConfigSchema } from '@lumbridgecorp/openclaw-mattermost';
+import { MattermostConfigSchema } from '@karti-ai/openclaw-mattermost';
 
 const result = MattermostConfigSchema.safeParse(yourConfig);
 if (!result.success) {
@@ -540,7 +540,7 @@ If you encounter issues during migration:
 
 1. **Check the security audit output** for configuration issues
 2. **Review the [API Reference](API.md)** for correct usage
-3. **Search [GitHub Issues](https://github.com/lumbridgecorp/openclaw-extentions-mattermost/issues)** for similar problems
+3. **Search [GitHub Issues](https://github.com/karti-ai/openclaw-extentions-mattermost/issues)** for similar problems
 4. **Create a new issue** with:
    - Your migration step
    - Error messages