Comments in benilla-ui: one line of fact each, no history, no record numbers (#143)

Part of #41: the comments of `benilla-ui` (the Lua UI engine, its FrameXML loader and its widgets) are rewritten to the rule in `docs/METHOD.md`, which is what the code does and the reference fact behind it, in a line. 43,140 comment lines become 15,161.

- **The mechanical strip.** The citations that were only a private record number go first, and each edit is shown to be a pure removal.
- **Wrong facts corrected.** The rewrite corrects the comments that stated wrong facts. Among them:
  - `0x64a480` is the case-sensitive compare (a byte `repz cmpsb`), and `0x64a4c0` the case-insensitive one.
  - A frame's id sits at `+0xb0`, not `+0xb4`. `EnableKeyboard`/`IsKeyboardEnabled` are `0x776ec0`/`0x776f90`.
  - A region's unpinned edge has no fallback to its owner's rect: the owner supplies only the scale.
  - `$parent` expands to the nearest named ancestor, or "Top" when none is named (`0x76c5b0`), not simply to the parent.
  - A StatusBar fills from its internal normalised fraction, not from `GetValue()`.
  - The addresses of `StartDuel` and `StartDuelUnit` were swapped.
  - Many "untraced" notes now give the traced reference fact: the drag threshold, the per-grip sizing edges, the empty-`autoFocus` skip, and `SetTexCoordModifiesRect`'s default.
  - Stock FrameXML line citations are checked against the stock 1.12 files and corrected. `ref-` file names become the stock file names.
- **Deviation labels.** "Deviation:" now marks only a choice with a reason. A surface that exists only for the retired Era addon target says so plainly: it is not 1.12.
- **Verification.** Every file strips to identical code, and `cargo fmt --check` is clean. Nine second readers compared every file old against new, restored the facts the rewrite had dropped, and checked each new citation against the code, the stock files, vmangos and the reference.

Behaviour differences the rewrite surfaced are filed as their own issues (#131–#142), and more are being validated. The comments here state what the code does. String literals are untouched; they are #92.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

crates/benilla-ui/src/script/ui_errors.rs

@@ -1,24 +1,16 @@
-//! **The Lua-callable half of the client-local error-display family** — FrameXML-facing globals
-//! whose whole body, in the reference binary, is "push one catalog id at
-//! `CGGameUI::DisplayError`'s dispatcher". The engine-side half (a Rust system raising a key
-//! directly, e.g. the passive-on-bar refusal) pushes onto the same [`Model::ui_errors`] queue;
-//! the app drains it, resolves each key against the VM's own GlobalStrings and fires
-//! `UI_ERROR_MESSAGE` (`ui_action/feed.rs`) — which is byte-for-byte the reference route: catalog
-//! row → GlobalStrings text → FrameScript event `0xe0`, rendered by UIErrorsFrame.
+//! Lua globals whose whole body pushes one catalog id at `CGGameUI::DisplayError`'s dispatcher.
+//! Engine-side refusals share the [`Model::ui_errors`] queue, which the app resolves against
+//! GlobalStrings and fires as `UI_ERROR_MESSAGE` (event `0xe0`), the reference's route.
 //!
-//! First tenant: `NotWhileDeadError` (decision 1507's open item): registration pair `0x83e398`,
-//! C body `0x48d340` = `push 0x7e; call 0x496720; xor eax,eax; ret` — no argument read, no
-//! dead-check of its own, 0 return values, and its catalog row (`0xb4be70`, key
-//! `ERR_PLAYER_DEAD`) names sound `"NONE"`, so the toast is silent. FrameXML decides *when* to
-//! call it (ShowUIPanel's `whileDead` refusal, UIParent.lua l.663-666; ContainerFrame.lua l.147
-//! and l.190); the binding only displays.
+//! `NotWhileDeadError` (`0x48d340`, registered at `0x83e398`) is `push 0x7e; call 0x496720`: no
+//! argument, no dead check, no return, and a silent catalog row (`0xb4be70`). FrameXML decides
+//! when to call it (`UIParent.lua:663-666`, `ContainerFrame.lua:147` and `:190`).
 
 use mlua::Lua;
 
 use super::model::Model;
 
-/// The GlobalStrings key of catalog id `0x7e` — the row `NotWhileDeadError`'s pushed id resolves
-/// to ("You can't do that when you're dead.").
+/// Catalog id `0x7e`'s GlobalStrings key ("You can't do that when you're dead.").
 const NOT_WHILE_DEAD_KEY: &str = "ERR_PLAYER_DEAD";
 
 /// Register the error-display globals.