fix(step-1,step-2): correct tool count, phantom alias, and missing summary rows

step-1: banner said "4 tools" but summary lists 5 (Homebrew, Git, Node, npm,
Claude Code); bump to "5 tools". Also add shell aliases (cc, ccr, ccc, cskip)
and ctg command to print_summary() — they were installed but invisible in the
completion table.

step-2/ghostty-install.sh: replace phantom "cbrain" alias reference with the
real Step 1 aliases (cc, ccr, ccc, cskip). cbrain is not installed by any
step — cbraintg (step-6) and the four step-1 aliases are the actual commands.

Author: fidgetcoding

step-1/step-1-install.sh

@@ -584,6 +584,8 @@ print_summary() {
     echo "    Node.js        $(node -v 2>/dev/null || echo '—')"
     echo "    npm            v$(npm -v 2>/dev/null || echo '—')"
     echo "    Claude Code    $(claude --version 2>/dev/null || echo '—')"
+    echo "    Shell aliases  cc, ccr, ccc, cskip"
+    echo "    ctg command    ~/.local/bin/ctg"
     echo ""
     if [ "$ERRORS" -gt 0 ]; then
         echo -e "  ${YELLOW}Warnings: $ERRORS non-critical tool(s) failed to install.${NC}"
@@ -604,7 +606,7 @@ main() {
     echo ""
     echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
     echo -e "${BLUE}  Step 1 — Get Claude Running${NC}"
-    echo -e "${BLUE}  4 tools • macOS + Linux${NC}"
+    echo -e "${BLUE}  5 tools • macOS + Linux${NC}"
     echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
     echo ""
     echo -e "  ${YELLOW}Note: This script installs everything automatically, but${NC}"

step-2/ghostty-install.sh

@@ -443,7 +443,7 @@ print_summary() {
     echo "    Open Ghostty from Spotlight (Cmd+Space, type Ghostty)"
     echo "    Cmd+T to open a new tab"
     echo "    Cmd+Click any URL or file path to open it"
-    echo "    Shell aliases (cskip, cbrain, etc.) set up by other steps work here automatically"
+    echo "    Shell aliases (cc, ccr, ccc, cskip) set up by Step 1 work here automatically"
     echo ""
     if [ "$OS" = "mac" ]; then
         echo "  Config location:"