release: 1.3.27 — Runtime performance, watchdog adaptive probes & mixed proxy DNS fix

- Perf(watchdog): Adaptive external health checks for proxy (30s) and DNS (60s)
  * Honor UCI ai_proxy_health_interval and ai_dns_interval while healthy
  * Adapt to fast retry (10-15s) upon consecutive failures, instant post-heal reset
  * Single shared observation context (tick_context) per tick eliminating redundant pgrep/proc scans
  * Throttle watchdog keepalive file writes from 5s to 30s
- Perf(ui): Read-only fast path for get_ui_state
  * Decouple refresh_action_dirs() filesystem GC from 500ms polling requests
  * Throttle action directory cleanup to once per 30s via /var/run stamp
  * Trigger immediate GC sweep on action job completion
- Perf(telegram): Long-poll 50s and eliminate redundant sleep after success
  * Increase getUpdates long-poll timeout to 50s (curl timeout 65s)
  * Remove redundant sleep after successful poll for instant command responsiveness
- Perf(torrserver): Cache detected PID and replace shell sleep with native ucode sleep(60000)
- Fix(singbox): Remove harmful hijack-dns rules from mixed proxy inbounds
  * Eliminate hijack-dns (port 53 / protocol dns) from section, direct bypass and service mixed proxies
  * Resolve 4-5s curl timeouts on component updates (api.github.com) and slow LAN DNS resolution
  * Maintain ip_is_private: true direct LAN routing bypass
- Test: Add tests/watchdog_adaptive_intervals.sh and update tests/sing_box_runtime.sh
- Version: Bump fe-app-tachyon to 1.3.27

fe-app-tachyon/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "fe-app-tachyon",
-  "version": "1.3.26",
+  "version": "1.3.27",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "fe-app-tachyon",
-      "version": "1.3.26",
+      "version": "1.3.27",
       "license": "MIT",
       "devDependencies": {
         "@babel/parser": "7.28.4",

fe-app-tachyon/package.json

@@ -1,6 +1,6 @@
 {
   "name": "fe-app-tachyon",
-  "version": "1.3.26",
+  "version": "1.3.27",
   "license": "MIT",
   "type": "module",
   "scripts": {