Azeroth Angler v2.1.15

Highlights:
- Fixed a regression where double-right-click casting stopped triggering correctly.
- Fixed lure attaching workflow regressions after tool-target tightening.

Details:
- Restored hybrid compatibility behavior for casting flow checks.
- Added `HasLureTarget()` and routed lure apply/alert paths through strict lure-target validation.
- Kept retry-based lure confirmation to reduce false negative bait checks.

Packaging:
- Version markers updated in startup banner, TOC, and README.