Added a SWOT analysis assistant (#1122)

Co-authored-by: hart_s3 <sabrina.hartmann@dlr.de>

app/MindWork AI Studio/Assistants/SWOTAnalysis/SwotQuadrantGrid.razor.css

@@ -0,0 +1,49 @@
+/*
+ * At most two columns, decided by the width of the grid itself: a column is at least half of the
+ * grid wide, so a third never fits, and at least 20rem, so two columns need about 40rem. Below that,
+ * the quadrants stand below each other. min(20rem, 100%) keeps a single column from overflowing a
+ * grid narrower than 20rem.
+ */
+.swot-quadrant-grid {
+    --swot-gap: 1rem;
+    display: grid;
+    gap: var(--swot-gap);
+    grid-template-columns: repeat(auto-fit, minmax(max(min(20rem, 100%), calc((100% - var(--swot-gap)) / 2)), 1fr));
+}
+
+.swot-quadrant {
+    border: 1px solid var(--mud-palette-lines-default);
+    border-radius: var(--mud-default-borderradius);
+    min-width: 0;
+    padding: 1rem;
+}
+
+.swot-quadrant-header {
+    margin-bottom: 0.65rem;
+}
+
+.swot-quadrant-axes {
+    color: var(--mud-palette-text-secondary);
+    display: block;
+    font-size: 0.8rem;
+}
+
+.swot-strengths {
+    border-top: 0.3rem solid var(--mud-palette-success);
+    background: color-mix(in srgb, var(--mud-palette-success) 8%, transparent);
+}
+
+.swot-weaknesses {
+    border-top: 0.3rem solid var(--mud-palette-warning);
+    background: color-mix(in srgb, var(--mud-palette-warning) 8%, transparent);
+}
+
+.swot-opportunities {
+    border-top: 0.3rem solid var(--mud-palette-info);
+    background: color-mix(in srgb, var(--mud-palette-info) 8%, transparent);
+}
+
+.swot-threats {
+    border-top: 0.3rem solid var(--mud-palette-error);
+    background: color-mix(in srgb, var(--mud-palette-error) 8%, transparent);
+}