fix: correct CJK tooltip layout and center option titles

docs/DEVLOG.md

@@ -3,6 +3,54 @@
 Working log for the *The I of the Dragon* localization / HD project.
 Newest entries on top.
 
+## 2026-09-20 — Center option titles and shorten tutorial exit prompt
+
+- User confirmed the HUD tooltip fix in game.
+- Original tutorial text was `\aOK - quit, Cancel - continue tutorial.`;
+  replaced the verbose literal Chinese translation with `\a退出教程？`.
+- Audio, game, video and controls titles all used fixed left x=620 before
+  resolution scaling. Their panel/button center is reference x=640. At
+  1280px, the 24px Chinese controls title was consequently 20px left of the
+  Bind button center. Title-only draw wrappers now measure actual text width
+  and subtract half from the transformed x=640 anchor, after screen scaling.
+- `test_cjk_titles.py` executes all four original title call sites with three
+  text widths plus 1280/1920 screen-width cases. Both title tests and all 14
+  tooltip/layout tests pass. Game source patcher and translated Strings.dat
+  are deployed locally; the user confirmed both fixes in game.
+
+## 2026-09-20 — Fix Chinese HUD tooltip overlap
+
+- Reproduced the reported world-map/minimap tooltip bug in the game's actual
+  x86 wrapped-text routine (`0x4ED380`) using Unicorn. It builds a one-byte
+  temporary string before measuring each character, so the existing DBCS
+  metrics hook measured isolated GB2312 bytes as width/height zero. This
+  miscentered Chinese lines and advanced the next line by only the 5px line
+  distance, overlapping the 12px Chinese artwork.
+- Added pair-aware read, append, and fit caves to `tools/apply_cjk.py`.
+  GB2312 pairs now reach the measurer together, are appended/consumed together,
+  and become complete-character wrap checkpoints. Initialized empty-line
+  checkpoints correctly so mixed ASCII/CJK wraps retain the prior line height.
+  A glyph wider than the available box is emitted intact rather than losing
+  its lead byte; existing caller clipping remains responsible for box bounds.
+- Added `tools/test_cjk_layout.py`: executes the real layout/measurement
+  instructions and captures only the Direct3D draw boundary. Fourteen tests
+  cover screenshot tooltip strings, shortcuts, centering, control codes,
+  measure-only height, mixed text, whitespace, narrow boxes, and oversize glyphs.
+  The original overlap case changes from `(Chinese x=24,y=0; S x=20,y=5)` to
+  `(Chinese x=12,y=0; S x=20,y=17)` in a 48px box.
+- No atlas, translation, font-size, or mission-script changes are needed.
+  Original exe and patcher snapshots: `backup_game/font-layout-20260920/`.
+  Local deployed program: `F:\steam\steamapps\common\The I of the Dragon\TheIOfTheDragon.exe`.
+
+Validation (requires `unicorn`):
+`python tools/test_cjk_layout.py --exe build/cjk-layout-fixed.exe -v`
+
+Progress audit: local HEAD matched Gitea `ca57488` before this fix; 1884 texture
+entries / 1882 preprocessed PNGs, 1397 geometry entries, and 479/496 translated
+Strings.dat IDs. Mission scripts, description tables, baked text, and HD
+upscaling remain separate unfinished work. Other-font CJK coverage is also
+still limited as documented in patch-notes.md.
+
 ## 2026-09-20 — Full `Strings.dat` translation
 
 - Translated the `English` column for **479 / 496** entries (the rest are pure-format