fix(post-update): use venv-repair for instant symlink restoration

Replace the old approach (create venvs in marketplace directory) with
the new venv-repair.sh approach (symlinks to external cache).

This ensures post-update.sh:
- Instantly restores symlinks if cache exists
- Only does full pip install on first run
- Works correctly after marketplace updates

Flow after this fix:
  Update marketplace → post-update.sh → venv-repair → Session works

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/post-update.sh

@@ -1,13 +1,13 @@
 #!/usr/bin/env bash
 #
-# post-update.sh - Run after pulling updates
+# post-update.sh - Run after pulling updates or marketplace sync
 #
 # Usage: ./scripts/post-update.sh
 #
 # This script:
-# 1. Updates Python dependencies for MCP servers
+# 1. Restores MCP venv symlinks (instant if cache exists)
-# 2. Validates configuration still works
+# 2. Creates venvs in external cache if missing (first run only)
-# 3. Reports any new manual steps from CHANGELOG
+# 3. Shows recent changelog updates
 #
 
 set -euo pipefail
@@ -19,64 +19,25 @@ REPO_ROOT="$(dirname "$SCRIPT_DIR")"
 GREEN='\033[0;32m'
 YELLOW='\033[1;33m'
 BLUE='\033[0;34m'
+RED='\033[0;31m'
 NC='\033[0m'
 
 log_info() { echo -e "${BLUE}[INFO]${NC} $1"; }
 log_success() { echo -e "${GREEN}[OK]${NC} $1"; }
 log_warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
-
+log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
-update_mcp_server() {
-    local server_name="$1"
-    local server_path="$REPO_ROOT/mcp-servers/$server_name"
-
-    if [[ ! -d "$server_path" ]]; then
-        log_warn "$server_name directory not found at $server_path - skipping"
-        return 0
-    fi
-
-    if [[ ! -f "$server_path/requirements.txt" ]]; then
-        log_warn "$server_name has no requirements.txt - skipping"
-        return 0
-    fi
-
-    cd "$server_path"
-
-    # Create venv if missing
-    if [[ ! -d ".venv" ]]; then
-        log_info "Creating $server_name venv (was missing)..."
-        python3 -m venv .venv
-        log_success "$server_name venv created"
-    else
-        log_info "Updating $server_name dependencies..."
-    fi
-
-    # Install/update dependencies
-    source .venv/bin/activate
-    pip install -q --upgrade pip
-    pip install -q -r requirements.txt
-
-    # Install local package in editable mode if pyproject.toml exists
-    if [[ -f "pyproject.toml" ]]; then
-        pip install -q -e .
-        log_success "$server_name package installed (editable mode)"
-    fi
-
-    deactivate
-    cd "$REPO_ROOT"
-    log_success "$server_name ready"
-}
 
 check_changelog() {
-    log_info "Checking CHANGELOG for recent updates..."
-
     if [[ -f "$REPO_ROOT/CHANGELOG.md" ]]; then
-        # Show the Unreleased section
+        local unreleased
+        unreleased=$(sed -n '/## \[Unreleased\]/,/## \[/p' "$REPO_ROOT/CHANGELOG.md" | grep -E '^### ' | head -1 || true)
+        if [[ -n "$unreleased" ]]; then
             echo ""
-        echo "Recent changes (from CHANGELOG.md):"
+            log_info "Recent changes (from CHANGELOG.md):"
             echo "-----------------------------------"
-        sed -n '/## \[Unreleased\]/,/## \[/p' "$REPO_ROOT/CHANGELOG.md" | head -30
+            sed -n '/## \[Unreleased\]/,/## \[/p' "$REPO_ROOT/CHANGELOG.md" | head -20
             echo "-----------------------------------"
-        echo ""
+        fi
     fi
 }
 
@@ -86,25 +47,28 @@ main() {
     echo "=============================================="
     echo ""
 
-    # Shared MCP servers at repository root (v3.0.0+)
+    # Run venv-repair.sh to restore symlinks to external cache
-    update_mcp_server "gitea"
+    # This is instant if cache exists, or does full setup on first run
-    update_mcp_server "netbox"
+    if [[ -x "$SCRIPT_DIR/venv-repair.sh" ]]; then
-    update_mcp_server "data-platform"
+        log_info "Restoring MCP venv symlinks..."
-    update_mcp_server "viz-platform"
+        if "$SCRIPT_DIR/venv-repair.sh"; then
-    update_mcp_server "contract-validator"
+            log_success "MCP venvs ready"
+        else
+            log_error "MCP venv setup failed"
+            log_warn "Run: $SCRIPT_DIR/setup-venvs.sh for full setup"
+            exit 1
+        fi
+    else
+        log_error "venv-repair.sh not found at $SCRIPT_DIR"
+        exit 1
+    fi
 
     check_changelog
 
     echo ""
     log_success "Post-update complete!"
     echo ""
-    echo "If you see new features in the changelog that require"
+    echo "MCP servers will work immediately on next session start."
-    echo "configuration changes, update your ~/.config/claude/*.env files."
 }
 
 main "$@"
-
-# Clear plugin cache to ensure fresh hooks are loaded
-echo "Clearing plugin cache..."
-rm -rf ~/.claude/plugins/cache/leo-claude-mktplace/
-echo "Cache cleared"