refactor: convert qa/ and setup-browser-cookies/ to .tmpl templates

Replaces hardcoded update check and find-browse blocks with
{{UPDATE_CHECK}} and {{BROWSE_SETUP}} placeholders. Both skills
are now generated from templates via gen-skill-docs.

setup-browser-cookies/SKILL.md

@@ -10,12 +10,14 @@ allowed-tools:
   - Read
   - AskUserQuestion
 ---
+<!-- AUTO-GENERATED from SKILL.md.tmpl — do not edit directly -->
+<!-- Regenerate: bun run gen:skill-docs -->
 
 ## Update Check (run first)
 
 ```bash
 _UPD=$(~/.claude/skills/gstack/bin/gstack-update-check 2>/dev/null || .claude/skills/gstack/bin/gstack-update-check 2>/dev/null || true)
-[ -n "$_UPD" ] && echo "$_UPD"
+[ -n "$_UPD" ] && echo "$_UPD" || true
 ```
 
 If output shows `UPGRADE_AVAILABLE <old> <new>`: read `~/.claude/skills/gstack/gstack-upgrade/SKILL.md` and follow the "Inline upgrade flow" (AskUserQuestion → upgrade if yes, `touch ~/.gstack/last-update-check` if no). If `JUST_UPGRADED <from> <to>`: tell user "Running gstack v{to} (just updated!)" and continue.
@@ -35,9 +37,14 @@ Import logged-in sessions from your real Chromium browser into the headless brow
 
 ### 1. Find the browse binary
 
+## SETUP (run this check BEFORE any browse command)
+
 ```bash
-B=$(browse/bin/find-browse 2>/dev/null || ~/.claude/skills/gstack/browse/bin/find-browse 2>/dev/null)
-if [ -n "$B" ]; then
+_ROOT=$(git rev-parse --show-toplevel 2>/dev/null)
+B=""
+[ -n "$_ROOT" ] && [ -x "$_ROOT/.claude/skills/gstack/browse/dist/browse" ] && B="$_ROOT/.claude/skills/gstack/browse/dist/browse"
+[ -z "$B" ] && B=~/.claude/skills/gstack/browse/dist/browse
+if [ -x "$B" ]; then
   echo "READY: $B"
 else
   echo "NEEDS_SETUP"