feat: Add PreTeleport and PostTeleport hook events

Add documentation and examples for new teleport hooks that allow users
to automate workflows when sessions transfer between web and CLI:

- PreTeleport: Runs before teleporting (stash work, sync state)
- PostTeleport: Runs after teleporting (pull changes, start dev servers)

This addresses the common workflow where users teleport from web to CLI
and need to run setup commands like `yarn dev:staging`.

Slack thread: https://anthropic.slack.com/archives/C096H3HP75G/p1765833639134099?thread_ts=1765833353.488839&cid=C096H3HP75G

plugins/plugin-dev/skills/hook-development/examples/post-teleport.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+# Example PostTeleport hook for setting up environment after teleporting
+# This script pulls changes, installs dependencies, and starts dev server
+
+set -euo pipefail
+
+# Navigate to project directory
+cd "$CLAUDE_PROJECT_DIR" || exit 0
+
+echo "Setting up environment after teleport..."
+
+# Pull latest changes if in a git repository
+if [ -d ".git" ]; then
+  current_branch=$(git branch --show-current)
+  echo "🔄 Pulling latest changes for branch: $current_branch"
+  git pull origin "$current_branch" 2>/dev/null || echo "Could not pull (may be offline or no upstream)"
+
+  # Check for stashed changes from pre-teleport
+  if git stash list | grep -q "pre-teleport-stash"; then
+    echo "📦 Restoring stashed changes from pre-teleport..."
+    git stash pop || echo "Could not restore stash (may have conflicts)"
+  fi
+fi
+
+# Install dependencies based on project type
+if [ -f "package.json" ]; then
+  echo "📦 Installing Node.js dependencies..."
+  npm install --silent 2>/dev/null || npm install
+fi
+
+if [ -f "requirements.txt" ]; then
+  echo "🐍 Installing Python dependencies..."
+  pip install -r requirements.txt --quiet 2>/dev/null || pip install -r requirements.txt
+fi
+
+if [ -f "Cargo.toml" ]; then
+  echo "🦀 Building Rust project..."
+  cargo build 2>/dev/null || true
+fi
+
+# Start development server if available
+if [ -f "package.json" ]; then
+  # Check for common dev server scripts
+  if grep -q '"dev:staging"' package.json; then
+    echo "🚀 Starting staging dev server..."
+    npm run dev:staging &
+  elif grep -q '"dev"' package.json; then
+    echo "🚀 Starting dev server..."
+    npm run dev &
+  elif grep -q '"start"' package.json; then
+    echo "🚀 Starting server..."
+    npm start &
+  fi
+fi
+
+echo "✅ Teleport complete! Environment ready."
+exit 0

plugins/plugin-dev/skills/hook-development/examples/pre-teleport.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+# Example PreTeleport hook for preparing environment before teleporting
+# This script stashes uncommitted changes and saves state for restoration
+
+set -euo pipefail
+
+# Navigate to project directory
+cd "$CLAUDE_PROJECT_DIR" || exit 0
+
+echo "Preparing for teleport..."
+
+# Check if we're in a git repository
+if [ ! -d ".git" ]; then
+  echo "Not a git repository, skipping pre-teleport preparation"
+  exit 0
+fi
+
+# Stash uncommitted changes before teleporting
+if [ -n "$(git status --porcelain)" ]; then
+  echo "📦 Stashing uncommitted changes before teleport..."
+  git stash push -m "pre-teleport-stash-$(date +%s)"
+  echo "Changes stashed successfully"
+else
+  echo "No uncommitted changes to stash"
+fi
+
+# Save current branch state for post-teleport restoration
+mkdir -p .claude
+echo "$(git branch --show-current)" > .claude/.teleport-state
+echo "Current branch saved: $(cat .claude/.teleport-state)"
+
+echo "Pre-teleport preparation complete"
+exit 0