Feat(P3): Modularize module and add Pardakht Novin support

- Split `p3` module into `p3_pardakht_novin` and `p3_sepehr` sub-modules
- Create `pardakht_novin_app` module with dedicated WebView and Hilt configuration
- Rename P3 services, printers, and models to be vendor-specific (e.g., `P3PardakhtNovinService`)
- Add `p3_pardakht_novin` and `p3_sepehr` product flavors to `tis_app` and `stage_app`
- Update project settings and build configurations to include the new modular structure
- Implement Sepehr-specific POS and Printer services in the new module

settings.gradle.kts

@@ -25,8 +25,13 @@ dependencyResolutionManagement {
 rootProject.name = "PSP"
 include(":app")
 include(":tis_app")
-include(":p3")
 include(":ps4")
 include(":core")
 include(":design_system")
 include(":stage_app")
+
+// P3 Parent and children
+include(":p3")
+include(":p3:p3_pardakht_novin")
+include(":p3:p3_sepehr")
+include(":pardakht_novin_app")