docs: changelog — flows disturbance hardening under 0.78.0

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

CHANGELOG.md

@@ -23,6 +23,23 @@ lockstep.
 - Flow editor pinned at 0.25.0 (store-resolvability split in the
   flow list, three-path analyzer message).
 
+### Fixed — disturbance hardening on the flows install path (0.78.0)
+
+- **Unknown ≠ absent.** Until the first successful store search
+  (and again after a connection switch) the store snapshot is
+  "unknown": the editor then claims neither "installable" nor
+  "not in store" for missing capabilities. Previously an
+  unreachable store made every missing capability claim
+  "not in store".
+- **Sealed switch resets capability offers.** Entering/leaving a
+  sealed area reloads both the installed-capability list and the
+  store snapshot on the mounted Flows page — the editor no longer
+  keeps offering the other hub's capabilities.
+- **Store snapshot refreshes after installs**, closing the race
+  where a fresh install left the badge's truth stale. The
+  classified "no store entry" error (see above) stays as the net
+  for true races.
+
 ### Added — project separation for flows (0.78.0)
 
 - **Workspace switcher on the Flows page.** The same project