feat(career): theme polish, rich-text bullets, entry ordering, outline API

Phase 4.5 backend enablers.
- Themes (priority 3): AtsFriendly flag on single-column themes (surfaced in
  GET /api/cv/themes), print-quality page-break rules (entries never split
  across a page; headings stay with content; widow/orphan control), darkened
  the creative sidebar for AA contrast.
- Rich text (priority 1): bullets/summary support **bold**, *italic*,
  __underline__, [text](url) via a safe inline pass — everything is HTML-escaped
  first, so no user tag can survive; only the whitelist emits markup.
- Entry ordering (priority 1): CvSectionSetting.ItemOrder reorders entries
  within a section by ItemKey, never touching the master profile.
- Outline API: GET /api/cv/outline returns the master profile as sections+entries
  with ItemKeys, so the Content tab can render editable per-item rows.
- 3 new tests (22 total in the builder suite).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Models/CvTheme.cs

@@ -47,6 +47,10 @@ public sealed class CvTheme
 
     public bool DefaultIcons { get; init; }
 
+    // ATS-friendly = single-column, no sidebar tables/graphics that trip naive resume parsers. Set on
+    // the single-column themes; surfaced in GET /api/cv/themes so the picker can badge it.
+    public bool AtsFriendly { get; init; }
+
     // Which section keys render in the sidebar for two-column layouts (ignored for single/header-band).
     public List<string> SidebarSections { get; init; } = new() { "contact", "skills", "languages" };
 }
@@ -62,7 +66,7 @@ public static class CvThemeCatalog
             Description = "Clean SaaS-style layout with a confident accent header.",
             Layout = "header-band", HeaderStyle = "band", HeadingStyle = "caps-rule",
             Accent = "#2563eb", HeadingFont = "'Segoe UI', Roboto, Arial, sans-serif", BodyFont = "'Segoe UI', Roboto, Arial, sans-serif",
-            PhotoShape = "rounded", DefaultIcons = true,
+            PhotoShape = "rounded", DefaultIcons = true, AtsFriendly = true,
         },
         new()
         {
@@ -71,7 +75,7 @@ public static class CvThemeCatalog
             Layout = "single", HeaderStyle = "plain", HeadingStyle = "plain",
             Accent = "#111827", HeadingColor = "#111827", Muted = "#6b7280",
             HeadingFont = "'Helvetica Neue', Arial, sans-serif", BodyFont = "'Helvetica Neue', Arial, sans-serif",
-            SectionGapMm = 7, EntryGapMm = 5, PhotoShape = "none",
+            SectionGapMm = 7, EntryGapMm = 5, PhotoShape = "none", AtsFriendly = true,
         },
         new()
         {
@@ -80,7 +84,7 @@ public static class CvThemeCatalog
             Layout = "single", HeaderStyle = "centered", HeadingStyle = "underline",
             Accent = "#7c2d12", Ink = "#1c1917", Muted = "#57534e", Line = "#1c1917",
             HeadingFont = "Georgia, 'Times New Roman', serif", BodyFont = "Georgia, 'Times New Roman', serif",
-            NameSizePt = 27, PhotoShape = "square",
+            NameSizePt = 27, PhotoShape = "square", AtsFriendly = true,
         },
         new()
         {
@@ -99,7 +103,7 @@ public static class CvThemeCatalog
             Layout = "single", HeaderStyle = "plain", HeadingStyle = "caps-rule",
             Accent = "#334155", Ink = "#111827", Muted = "#374151",
             HeadingFont = "Arial, Helvetica, sans-serif", BodyFont = "Arial, Helvetica, sans-serif",
-            PhotoShape = "none",
+            PhotoShape = "none", AtsFriendly = true,
         },
         new()
         {
@@ -117,14 +121,14 @@ public static class CvThemeCatalog
             Layout = "single", HeaderStyle = "kicker", HeadingStyle = "underline",
             Accent = "#7c3aed", Ink = "#1f2937", Muted = "#4b5563",
             HeadingFont = "Georgia, 'Times New Roman', serif", BodyFont = "'Segoe UI', Arial, sans-serif",
-            NameSizePt = 26, SectionGapMm = 7, PhotoShape = "circle",
+            NameSizePt = 26, SectionGapMm = 7, PhotoShape = "circle", AtsFriendly = true,
         },
         new()
         {
             Id = "creative", Name = "Creative", Category = "Creative",
             Description = "Bold accent sidebar and photo-forward header for design and product roles.",
             Layout = "sidebar-left", HeaderStyle = "band", HeadingStyle = "bar",
-            Accent = "#db2777", Ink = "#18181b", Muted = "#52525b", SidebarBg = "#db2777", SidebarInk = "#ffffff",
+            Accent = "#db2777", Ink = "#18181b", Muted = "#52525b", SidebarBg = "#be185d", SidebarInk = "#ffffff",
             HeadingFont = "'Poppins', 'Segoe UI', Arial, sans-serif", BodyFont = "'Segoe UI', Arial, sans-serif",
             PhotoShape = "circle", DefaultIcons = true,
             SidebarSections = new() { "contact", "skills", "languages", "interests" },

Models/CvVariantSettings.cs

@@ -39,6 +39,10 @@ public sealed class CvSectionSetting
     public string Key { get; set; } = string.Empty; // summary|skills|experience|education|projects|certifications|languages|interests|links|custom:<k>
     public bool Hidden { get; set; }
     public string? Title { get; set; } // renamed heading
+    // Explicit entry order for this section, as a list of item ItemKeys. Entries not listed keep their
+    // master order and come last. Null => master profile order. Lets a variant reorder entries without
+    // touching the master profile.
+    public List<string>? ItemOrder { get; set; }
 }
 
 public sealed class CvItemOverride