fix(jetbrains): replace internal badge-icon APIs in worktree row icons

[kirillk]

Summary

verifyPlugin failed the 7.1.6-rc.1 publish run (run) with:

Verification failed with [INTERNAL_API_USAGES] problems.

All 5 usages came from WorktreeIcons.live() (introduced in #13712): com.intellij.ui.BadgeIcon, BadgeDotProvider, and BadgeShapeProvider are @ApiStatus.Internal on the platform version this plugin targets (IU-261) — they were only promoted to stable in a later platform release (confirmed against $INTELLIJ_REPO, commit 99a9aeacba02 "Promote BadgeIcon to stable").

Nothing was published; the run failed before the Marketplace/GitHub Release steps.

Why not just use the public withIconBadge/withLiveIndicator?

Both delegate to the same internal BadgeIcon(icon, color) with the platform's default dot geometry, which is tuned for a 20px stripe icon. On a 16px base the hole overhangs the edge, and HoledIcon reports the icon's size as the union of glyph + hole — so a 16px base would report ~18px and widen the worktree row's icon column for running rows only. That's exactly what the existing custom geometry (x=0.75, y=0.25, radius=0.175, border=0.075) was written to avoid, and what two existing tests assert against.

Fix

Added LiveBadgeIcon (ui/LiveBadgeIcon.kt) — a Kilo-owned Icon following the same house pattern as DotIcon/ActivityIcon/FilledBadgeIcon: plain javax.swing.Icon, antialiased Graphics2D painting, geometry as fractions of the base icon's own size. Reproduces the previous pixels exactly (same fractions, same clip-then-fill approach used by the platform's HoledIcon/BadgeIcon), with zero internal API usage.

WorktreeIcons.live() now returns LiveBadgeIcon instead of the platform's BadgeIcon. Tests updated to target the new type, plus one new paint test verifying the badge actually renders the base glyph and a success-colored, opaque dot (using a synthetic base icon, since real platform icons resolve to a no-op DummyIconImpl under BasePlatformTestCase).

Verification

From packages/kilo-jetbrains/:

• ./gradlew typecheck — pass
• ./gradlew test — pass (all suites, including 21/21 in WorktreeIconsTest)
• ./gradlew verifyPlugin — the check that failed publish: INTERNAL_API_USAGES dropped from 5 to 0; result is now Compatible.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (3 files)

• packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/agentManager/worktree/WorktreeIcons.kt
• packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/ui/LiveBadgeIcon.kt
• packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/agentManager/WorktreeIconsTest.kt

---

_{Reviewed by grok-4.6 · Input: 90.1K · Output: 12.6K · Cached: 186K}

_{Review guidance: REVIEW.md from base branch main}