Please contact your immigration office for details as it is office specific condition. Most offices accept yearly extension application 30 days in advance until the due date. Some offices such as Bangkok, Chiang Mai, etc, accept those from 45 days before the due date.
The yellow house book and/or pink ID card have no bearing on your 90-day report. The immigration office where you submit your 90-day report is the one to which you submit your latest TM.30.
Entry stamp on Single or Multiple Entry Tourist Visa is always 60 days with possibility of one 30-day extension per each entry of 60 days. No difference on the maximum length of per stay.
, Don't forget to tell to the officer about your travel plan during under-consideration period when you apply for an extension. There is a chance the officer(s) may contact applicant during u/c. If you skip the contact, you might get a risk to lose the application.
As long as you apply for a one-year extension based on the same reason as the current one, your next extension will be added to the current extension, which means it will be 10 August 2025 - 9 August 2026, regardless of how early you apply. You don't lose any day to apply early, no worries.