feat: add managed ISAC image library

src/app.css

@@ -792,3 +792,4 @@
 	.dashboard-row>.table-action:active{transform:none}
 }
 
+.image-library-editor{margin:10px 0}.image-library-form{display:grid;grid-template-columns:minmax(330px,.8fr) minmax(440px,1.2fr);gap:12px;margin-top:12px}.image-library-upload .image-drop-input{height:100%;min-height:168px}.image-library-upload .image-upload-preview{width:112px;height:112px}.image-library-metadata{display:grid;grid-template-columns:1fr 1fr;align-content:start;gap:8px}.image-library-metadata .field{margin:0}.image-library-metadata .full,.image-processing-options{grid-column:1/-1}.image-processing-options{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--shd-border);background:#0d1011}.image-processing-options label{min-height:58px;display:grid;grid-template-columns:auto 1fr;align-items:center;gap:9px;padding:9px;cursor:pointer}.image-processing-options label+label{border-left:1px solid var(--shd-border)}.image-processing-options input{width:auto;margin:0;accent-color:var(--shd-orange)}.image-processing-options span{display:grid;gap:3px}.image-processing-options b{font-size:var(--shd-type-telemetry);letter-spacing:.8px}.image-processing-options small{color:var(--shd-text-muted);font-size:var(--shd-type-telemetry);line-height:1.35}.image-processing-options label:has(input:checked){background:#1b170e;box-shadow:inset 0 -2px var(--shd-orange)}.image-processing-options label.disabled{opacity:.42;cursor:not-allowed}.image-metadata-edit{display:grid;grid-template-columns:72px 1fr 1fr 1.4fr;align-items:end;gap:9px;margin-top:10px}.image-metadata-edit>img{width:72px;height:72px;object-fit:contain;padding:5px;border:1px solid var(--shd-border);background:#090b0c}.image-metadata-edit .field{margin:0}.image-library-grid{display:grid;grid-template-columns:repeat(4,minmax(190px,1fr));gap:8px;margin-top:8px}.image-library-grid article{min-width:0;border:1px solid var(--shd-border);border-top:2px solid #4a5152;background:var(--shd-surface);transition:var(--shd-transition)}.image-library-grid article.icon{border-top-color:var(--shd-orange)}.image-library-grid article:hover{border-color:#596061;background:#15191a}.image-library-preview{height:150px;display:grid;place-items:center;padding:14px;border-bottom:1px solid var(--shd-border);background:linear-gradient(135deg,#0a0c0d 25%,#101314 25%,#101314 50%,#0a0c0d 50%,#0a0c0d 75%,#101314 75%);background-size:16px 16px}.image-library-preview img{display:block;max-width:100%;max-height:100%;object-fit:contain}.image-library-grid header{position:static;height:auto;min-height:54px;display:flex;align-items:center;justify-content:space-between;padding:9px 11px;border-bottom:1px solid var(--shd-border);background:transparent}.image-library-grid header>div{min-width:0;display:grid;gap:3px}.image-library-grid header strong{overflow:hidden;font-size:13px;text-overflow:ellipsis;white-space:nowrap}.image-library-grid header span,.image-library-grid header b{font-size:var(--shd-type-telemetry);letter-spacing:.8px}.image-library-grid header span{color:var(--shd-text-muted)}.image-library-grid header b{color:var(--shd-orange)}.image-library-tags{min-height:42px;display:flex;align-content:flex-start;flex-wrap:wrap;gap:4px;padding:8px 10px}.image-library-tags span{width:max-content;padding:3px 5px;border:1px solid #3c4243;color:#92999b;font-size:var(--shd-type-telemetry)}.image-library-tags small{color:var(--shd-text-dim);font-size:var(--shd-type-telemetry)}.image-library-grid footer{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 10px;border-top:1px solid var(--shd-border)}.image-library-grid footer span{color:var(--shd-text-muted);font-size:var(--shd-type-telemetry)}.image-library-grid footer button{border:0;background:transparent;color:var(--shd-orange);font-size:var(--shd-type-telemetry);font-weight:900;cursor:pointer}.image-library-empty{grid-column:1/-1;min-height:180px;display:grid;place-content:center;gap:6px;border:1px dashed var(--shd-border);color:var(--shd-text-muted);text-align:center}.image-library-empty strong{color:var(--shd-text)}@media(max-width:1100px){.image-library-grid{grid-template-columns:repeat(3,minmax(180px,1fr))}}@media(max-width:800px){.image-library-form{grid-template-columns:1fr}.image-library-grid{grid-template-columns:repeat(2,minmax(150px,1fr))}.image-metadata-edit{grid-template-columns:72px 1fr}.image-metadata-edit .field:last-child{grid-column:1/-1}}@media(max-width:560px){.image-library-metadata,.image-processing-options,.image-library-grid{grid-template-columns:1fr}.image-library-metadata .full,.image-processing-options{grid-column:auto}.image-processing-options label+label{border-left:0;border-top:1px solid var(--shd-border)}.image-library-preview{height:132px}.image-metadata-edit{grid-template-columns:1fr}.image-metadata-edit>img{width:100%;height:96px}}