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frontend: shared <hive-warn> component for inline warning banners

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Consolidates three independently-written instances of the same thing:
.cred-warning (credentials.html, static markup), .tombstone-warn
(core.js, JS-built), .port-conflict (swarm.js, JS-built) -- the first
two differed only by an undeliberate 10% vs 8% tint, the strongest
argument this was drift rather than three genuinely different needs.

New autonomous custom element, frontend/packages/shared/src/hive-warn/,
matching the established one-component-one-dir shadow-DOM pattern
(hive-btn, hive-toast, hive-dialog). Purely presentational -- no
lifecycle beyond attaching its shadow root once, no
attributeChangedCallback needed since severity/pulse are read directly
by :host([...]) CSS selectors rather than mirrored onto an inner
element. Content passes through via a single default <slot>, so every
call site keeps writing its existing <strong>/<code> markup unchanged.

API: <hive-warn> (amber, default) / <hive-warn severity="red"> for an
active incident vs a standing caveat, plus an opt-in pulse boolean
modifier (only the port-collision banner wants it -- a banner that's
always present and always pulsing just trains you to stop seeing it).
Tint is a single canonical 8% for both severities now, replacing the
10%/8% split.

Registered once in dashboard's common.js (same side-effect-import
pattern as <hive-side-panel>) so every dashboard page picks it up
without a per-file import, since all three call sites (core.js,
swarm.js, credentials.js) already transitively import it.

Verified: npm run build clean for both dashboard and agent packages,
grepped source for leftover cred-warning/tombstone-warn/port-conflict
references (none), confirmed hive-warn/HiveWarn/hive-warn-pulse present
in every affected dist bundle, confirmed the still-live
questions-pulse keyframe (.questions) untouched.
This commit is contained in:
iris 2026-08-03 18:21:01 +02:00 • committed by mara
commit dfd92a7da9
9 changed files with 99 additions and 39 deletions
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9
frontend/packages/dashboard/src/credentials.css
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@ -27,15 +27,6 @@ body.cred-shell {
.cred-pane[hidden] { display: none; }
.cred-warning {
border: 1px solid var(--amber);
border-radius: 4px;
padding: 0.7rem 0.9rem;
margin: 0.6rem 0 1.1rem;
font-size: 0.9rem;
background: color-mix(in srgb, var(--amber) 10%, transparent);
}
.gh-status { margin: 0.5rem 0 1.2rem; }
.gh-status-line {
display: flex;