[ccoventry]

Release note: Fixed: with a bigger kill feed or your own kill-feed font, the victim's name no longer runs into the right edge of the screen.

Part of #728

What was wrong

CHudDeathNotice::Draw anchors each line at ScreenWidth - icon - victim width, so the victim's measured width ends exactly on the screen's edge (the game does this too). The measure is the sum of glyph advances, so a big face's last glyph (its overhang) and a drop shadow land past the edge. At the game's own 16 px face that's a pixel or two. At scale 2+ on 2560x1440, with the engine font or font Bahnschrift SemiBold 32 shadow, the last letter was visibly cut ("motiv", "G A U L", "element").

A diag build logged every line's numbers on POST and PRE at 2560x1440 (scale 2, engine font). The anchor, the icon advance (scaled rect) and the victim's draw all agree: every victim ends at exactly x = 2560. Nothing uses the unscaled icon width. The user's "rifle lines overflow most" was the same edge cut on each line. It isn't Anniversary-only, and #860/#890 don't change it: #890's trim only swaps the rect inside the SPR_DrawHoles hook, never the rects the layout reads.

Fix

The victim's width call (the first call of each line) now goes to its own redirect, victim_len. While a scale or a font is in force, it adds a right margin: 1/160 of the screen width (16 px at 2560, 12 at 1920), or a quarter of the text height when that is more. The whole line moves left by that much. At scale 1 with no font, the layout is still exactly the game's.

Decisions

• The margin is on only while scale or font is in force, so the stock layout stays byte-for-byte the game's.
• Margin = max(width/160, text height/4). It covers the overhang plus the shadow of the faces tried, and grows with a huge face.

Test done

Test DLL: local\test-killfeed-edge\. game_probe, Brain account. Real demo kills plus fake lines (garand, grenade, mp44, kar). Scales 1/2/2.5/3, each with the engine font and with font Bahnschrift SemiBold 32 shadow (the WSOD25 settings):

• POST 2560x1440, wsod25_grp1_h1_m00cat (dod_addon, -addons): every victim name is clear of the edge at scales 2/2.5/3 with both fonts. Scale 1 + engine font is unchanged (stock, flush).
• POST 1920x1080, same demo: same result.
• PRE 2560x1440, ktps8w1-m00cat_soul_lenn_h2: same result. Two grabs caught the scoreboard or an empty feed (demo timing), not a layout issue.
• PRE 1920x1080, same demo: same result.
• cargo test -p goldsrc-hooks: 768 passed, including a new right_margin test.
• clippy -D warnings (toolchain 1.98.1) is clean for i686 and host; cargo fmt --check passes.

#1000 (outline and backgrounds) is stacked on this PR.
Screenshots and contact sheets: main checkout local\review-images\killfeed-edge\ (edge-*-sheet.png).

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