V1.6.2

What's new in this release:

-Added a Weight tracker. Log a starting weight, keep logging your current weight over time, and see your average change per week as one plain, neutral number instead of separate "loss" or "gain" labels.
-Added a Mood tracker. Pick up to 5 moods from a categorized list (tap a category to expand it) and jot down a short note if you want.
-If you track both Cycle and Mood, Cycle's own mood field now just points you to the Mood tracker instead of making you log the same thing twice.
-Cycle history now shows "See Mood history" only when there's actually mood data logged for those days.
-You can now delete individual entries from Cycle, Weight, and Mood history, in case of a duplicate or a mistake.
-History entries across Cycle, Weight, and Mood now reliably sort newest to oldest.
-Added a quick "Saved" confirmation after tapping save on Cycle, Weight, and Mood, so it's obvious your entry actually went through.

Updated both README files to reflect everything above.