fix: heartbeat only to SAC, never Telegram/email

agent.heartbeat in Send-NotifyOrSac skips local channels in dual/fallback/off.
Bump to 1.2.6-SAC.

Co-authored-by: Cursor <cursoragent@cursor.com>

.cursorignore

@@ -0,0 +1,65 @@
+# Çàâèñèìîñòè è ïàêåòû
+node_modules/
+bower_components/
+jspm_packages/
+.npm/
+vendor/
+.pnpm-store/
+
+# Âèðòóàëüíûå îêðóæåíèÿ (Python)
+.venv/
+venv/
+env/
+ENV/
+.env/
+
+# Ñáîðêà, êýø è àðòåôàêòû
+dist/
+build/
+out/
+.next/
+.nuxt/
+.docusaurus/
+.cache/
+.sass-cache/
+.turbo/
+target/
+bin/
+obj/
+
+# Ñèñòåìíûå ïàïêè IDE è ëîãè
+.git/
+.svn/
+.idea/
+.vscode/
+.cursor/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Ìåäèà, øðèôòû è òÿæåëûå áèíàðíûå ôàéëû
+*.png
+*.jpg
+*.jpeg
+*.gif
+*.svg
+*.ico
+*.mp4
+*.mp3
+*.pdf
+*.zip
+*.tar.gz
+*.rar
+*.exe
+*.dll
+*.woff
+*.woff2
+*.ttf
+*.eot
+
+# Ñãåíåðèðîâàííûå ôàéëû áëîêèðîâîê (îïöèîíàëüíî, ýêîíîìÿò ìíîãî òîêåíîâ)
+package-lock.json
+yarn.lock
+pnpm-lock.yaml
+poetry.lock

Sac-Client.ps1

@@ -225,7 +225,7 @@ function Invoke-SacPostPayload {
             'Idempotency-Key' = $eventId
         }
         $resp = Invoke-WebRequest -Uri $ingest -Method Post -Headers $headers -Body $JsonBody -UseBasicParsing -TimeoutSec $timeout
-        if ($resp.StatusCode -in 201, 409, 202) {
+        if ($resp.StatusCode -eq 202) {
             Remove-SacSpoolFile -EventId $eventId
             Reset-SacFailCount
             Write-SacLog "SAC: accepted event_id=$eventId type=$eventType"
@@ -393,7 +393,7 @@ function Test-SacConnection {
         return 1
     }
     if (Send-SacEvent -EventType 'agent.test' -Severity 'info' -Title 'SAC test' -Summary 'rdp-login-monitor CheckSac') {
-        Write-Host 'SAC ingest agent.test: OK (expected HTTP 201)'
+        Write-Host 'SAC ingest agent.test: OK (expected HTTP 202)'
         return 0
     }
     Write-Error 'SAC ingest agent.test: FAIL'