fix(ui): detect PID reuse, verify delta channel, correct rule and date handling

Hold one process handle across every identity check and injection so the PID
cannot be recycled mid-inject, and prune injected entries whose start time no
longer matches. Read the delta back before reporting a successful injection
so a dead channel is no longer a silent no-op mock. Match rules
case-insensitively and skip the path arm when the path is empty, surface
invalid patterns instead of swallowing them, and stop retrying a failed
auto-inject target until its PID is reused. Restore the last fake time on
startup, reset "Now" to exactly zero delta, clamp the whole date to range so
a boundary shift no longer jumps a year, and default missing persisted fields
so one bad field cannot wipe all rules. Show a message box on release startup
failure, and cache compiled rules between scans.

Cargo.lock

@@ -2466,6 +2466,7 @@ dependencies = [
  "embed-manifest",
  "globset",
  "regex",
+ "ron",
  "serde",
  "sysinfo 0.32.1",
  "tempfile",