docs: mark v4.4.1/v4.5.0 shipped in roadmap and READMEv4.5.0

Update RELEASE_ROADMAP.md to show v4.4.1 and v4.5.0 as shipped (with the actual
delivered scope), set the current version to v4.5.0, and note the deferred Lock
Screen widget families. Refresh the README release target to v4.5.0.

1 files changed, 4 insertions, 2 deletions

diff --git a/README.md b/README.md
index 5d9b458..ca9d68c 100644
--- a/README.md
+++ b/README.md
@@ -3,13 +3,15 @@
 [![Security Rating](https://sonarcloud.io/api/project_badges/measure?project=zerolabsco_domain-dig&metric=security_rating)](https://sonarcloud.io/summary/new_code?id=zerolabsco_domain-dig)
 [![Reliability Rating](https://sonarcloud.io/api/project_badges/measure?project=zerolabsco_domain-dig&metric=reliability_rating)](https://sonarcloud.io/summary/new_code?id=zerolabsco_domain-dig)
 
+[![App Store Badge](https://zerolabs.sh/storebutton.svg)](https://apps.apple.com/us/app/domaindig/id6760368004)
+
 DomainDig is a local-first iOS domain inspection toolkit for DNS, web, ownership, monitoring, reporting, and audit workflows. The app gathers a point-in-time domain snapshot, normalizes it into a canonical `DomainReport`, and keeps user data on device unless the user exports, shares, or syncs it.
 
 ## Current Release Target
 
-Immediate release target: `v4.4.1`.
+Current release: `v4.5.0`.
 
-This patch release focuses on release readiness: resolving duplicate Audit Mode implementations, aligning app/project version metadata, preserving audit persistence and backup/restore coverage, and refreshing docs for the current app surface.
+This minor release adds Home Screen and Shortcuts reach: App Intents for inspect, add-to-watchlist, and watchlist sweep; a `domaindig://` URL scheme with deep links; and a WidgetKit portfolio widget that shares tracked-domain state with the app through an App Group.
 
 ## Features