docs: standardize env var naming to GH_TOKEN (#144)

Author: spences10

.claude/skills/teammate-prompt/references/examples.md

@@ -68,7 +68,7 @@ cd ralph-town
 /usr/bin/git checkout -b docs/104-standardize-env-vars
 
 ## Implementation
-Standardize on GH_TOKEN everywhere. Search and replace GITHUB_PAT.
+Standardize on GH_TOKEN everywhere. This is now complete (GH_TOKEN is standard).
 
 Files to update:
 - CLAUDE.md

.devcontainer/devcontainer.json

@@ -11,7 +11,7 @@
 	"postCreateCommand": "bun install && npm i -g tsx @anthropic-ai/claude-agent-sdk",
 	"remoteEnv": {
 		"ANTHROPIC_API_KEY": "${localEnv:ANTHROPIC_API_KEY}",
-		"GITHUB_PAT": "${localEnv:GITHUB_PAT}",
+		"GH_TOKEN": "${localEnv:GH_TOKEN}",
 		"LANGFUSE_SECRET_KEY": "${localEnv:LANGFUSE_SECRET_KEY}",
 		"LANGFUSE_PUBLIC_KEY": "${localEnv:LANGFUSE_PUBLIC_KEY}"
 	},

README.md

@@ -87,7 +87,7 @@ ralph-town sandbox delete abc123
 ## Requirements
 
 - `DAYTONA_API_KEY` - Get from [daytona.io](https://daytona.io)
-- `GITHUB_PAT` - For git push operations (optional)
+- `GH_TOKEN` - For git push operations (optional)
 
 ## Packages
 

packages/cli/README.md

@@ -30,7 +30,7 @@ npx ralph-town
 | Variable          | Required        | Description     |
 | ----------------- | --------------- | --------------- |
 | `DAYTONA_API_KEY` | runtime=daytona | Daytona API key |
-| `GITHUB_PAT`      | git workflow    | GitHub token    |
+| `GH_TOKEN`      | git workflow    | GitHub token    |
 
 ## Development