Feat v0.7.7 API tokens + extension permissions (#61)

Personal access tokens (PATs) for programmatic API access with
SHA-256 hashing, permission scoping (git model), and Settings/Admin UI.
Extension-declared user permissions with dynamic registry, gate_permission
manifest field, permissions Starlark module, and grouped admin UI.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ci/e2e-smoke-test.sh

@@ -32,11 +32,22 @@ echo "  Server: ${SERVER_URL}"
 mkdir -p "${SCREENSHOT_DIR}"
 
 # ── Authenticate ─────────────────────────────
-echo -e "${YELLOW}Authenticating...${NC}"
-TOKEN=$(curl -sf -X POST "${SERVER_URL}/api/v1/auth/login" \
-  -H "Content-Type: application/json" \
-  -d "{\"login\":\"${ADMIN_USER}\",\"password\":\"${ADMIN_PASS}\"}" \
-  | node -e "process.stdin.resume(); let d=''; process.stdin.on('data',c=>d+=c); process.stdin.on('end',()=>{try{console.log(JSON.parse(d).token)}catch(e){process.exit(1)}})")
+# Try PAT first (from bootstrap), fall back to login
+PAT_FILE="/tmp/armature-admin-pat.txt"
+TOKEN=""
+
+if [ -f "$PAT_FILE" ]; then
+  TOKEN=$(cat "$PAT_FILE")
+  echo -e "${GREEN}Authenticated via bootstrap PAT${NC}"
+fi
+
+if [ -z "$TOKEN" ]; then
+  echo -e "${YELLOW}Authenticating via login...${NC}"
+  TOKEN=$(curl -sf -X POST "${SERVER_URL}/api/v1/auth/login" \
+    -H "Content-Type: application/json" \
+    -d "{\"login\":\"${ADMIN_USER}\",\"password\":\"${ADMIN_PASS}\"}" \
+    | node -e "process.stdin.resume(); let d=''; process.stdin.on('data',c=>d+=c); process.stdin.on('end',()=>{try{console.log(JSON.parse(d).token)}catch(e){process.exit(1)}})")
+fi
 
 if [ -z "$TOKEN" ]; then
   echo -e "${RED}Failed to authenticate${NC}"