Use natural monthly GST return navigation and pending download polling

app/modules/accounting/gst_operator_agent_runtime/README.txt

@@ -1,4 +1,4 @@
-ARRR GST Operator Agent 1.5.0
+ARRR GST Operator Agent 1.5.1
 
 Purpose
 -------
@@ -25,7 +25,7 @@ Uninstall
 Run uninstall_gst_operator_agent.ps1. It removes the protocol registration and also cleans legacy v1.0.x localhost listener/startup/certificate state.
 
 
-V1.5.0 OCTAGST-STYLE RETURN-DASHBOARD EXTRACTION
+V1.5.1 OCTAGST-STYLE RETURN-DASHBOARD EXTRACTION
 - Preserves the v1.4.0 Credential Vault login, manual CAPTCHA/OTP, natural Welcome -> Return Dashboard flow, ERP upload and failure diagnostics.
 - GSTR-2B no longer transfers the browser to gstr2b.gst.gov.in.
 - GSTR-2B is requested from the authenticated return.gst.gov.in Return Dashboard using the GST offline-download API pattern used by the supplied OctaGST extension.
@@ -34,3 +34,12 @@ V1.5.0 OCTAGST-STYLE RETURN-DASHBOARD EXTRACTION
 - No automatic GST logout is performed.
 - A job is completed only after every selected period/return has a saved result and ERP/client-storage upload is confirmed.
 - Manual JSON/ZIP import remains available in ERP as fallback.
+
+
+V1.5.1 NATURAL MONTHLY RETURN FLOW + GSTR-2B PENDING POLL
+--------------------------------------------------------
+- Restores robust Aadhaar/E-KYC Remind me later / Later dismissal.
+- GSTR-2B generation-accepted responses are PENDING, not failures; polls up to 25 minutes.
+- GSTR-1: selects FY/Quarter/Month on Return Dashboard, clicks Search, opens the actual GSTR-1 card, then performs offline generation/download from the initialized page context.
+- GSTR-3B: selects FY/Quarter/Month, clicks Search, opens the actual GSTR-3B card, then reads summary/tax-payable from the initialized return page context.
+- Existing Credential Vault, custom protocol, login/CAPTCHA, manual fallback, ERP upload and Storage Agent flow are unchanged.