docs(examples): browsable feature-catalog PDF - every capability with its API call

New flagship FeatureCatalogExample: one PDF where each shipped capability
is a self-documenting block - the heading lands in the PDF outline so the
bookmarks panel works as a clickable index, a code panel shows the exact
API call (the source file contains the literal same call right below the
snippet string, so drift is visible in review), and the live result
renders underneath. Covered: rich text runs, inline sparklines, nested
lists with per-depth markers, timelines, tables with totals, grouped /
line-smooth-area / donut / horizontal-stacked charts, gradient and
translucent fills, custom polygons, clipped shape containers, canvas
placement, transforms, barcodes, and the document's own metadata /
header / footer / outline chrome. Every block keeps together across page
breaks. Snippet indentation survives wrapping via non-breaking spaces;
list markers and snippet glyphs stay inside WinAnsi coverage.

Author: DemchaAV

CHANGELOG.md

@@ -107,6 +107,14 @@ Entries land here as they merge.
 
 ### Documentation
 
+- **Browsable feature-catalog PDF.** New flagship `FeatureCatalogExample`
+  renders every shipped capability as a self-documenting block: the heading
+  lands in the PDF outline (the bookmarks panel works as a clickable index),
+  a code panel shows the exact API call, and the live result renders right
+  under it — rich text, sparklines, nested lists, timelines, tables, every
+  chart kind, gradients, translucency, polygons, clipped containers, canvas,
+  transforms, barcodes, and the document's own chrome. Blocks use
+  `keepTogether()`, so a snippet is never orphaned from its result.
 - **Recipe coverage is complete.** Nine new cookbook pages close every gap the
   recipe index tracked: rich text, lists, timelines, barcodes, images,
   PDF chrome (metadata / watermark / running header-footer / protection /

assets/readme/examples/feature-catalog.pdf

@@ -96,6 +96,7 @@ are with the canonical DSL, then jump to its detailed section below.
 | [Layout snapshot regression](#layout-snapshot-regression) | Deterministic `layoutSnapshot()` workflow with baseline + drift report — production regression-testing pattern | [PDF](../assets/readme/examples/invoice-snapshot-regression.pdf) · [Source](src/main/java/com/demcha/examples/features/snapshots/LayoutSnapshotRegressionExample.java) |
 | [Business report cover](#business-report-cover) | Single-page Q1 investor brief — hero image, KPI cards, bar chart, metrics table | [PDF](../assets/readme/examples/business-report.pdf) · [Source](src/main/java/com/demcha/examples/flagships/BusinessReportExample.java) |
 | [Master showcase](#master-showcase) | Kitchen-sink "Q2 sample report" combining the canonical surface end-to-end | [PDF](../assets/readme/examples/master-showcase.pdf) · [Source](src/main/java/com/demcha/examples/flagships/MasterShowcaseExample.java) |
+| Feature catalog | Browsable reference PDF: every shipped capability as a block — outline-clickable heading, the exact API call, the rendered result right under it | [PDF](../assets/readme/examples/feature-catalog.pdf) · [Source](src/main/java/com/demcha/examples/flagships/FeatureCatalogExample.java) |
 
 ### 🗄️ Legacy
 

assets/readme/feature-catalog.png

@@ -16,6 +16,7 @@
 import com.demcha.examples.features.themes.CustomBusinessThemeExample;
 import com.demcha.examples.features.transforms.TransformsExample;
 import com.demcha.examples.flagships.BusinessReportExample;
+import com.demcha.examples.flagships.FeatureCatalogExample;
 import com.demcha.examples.flagships.MasterShowcaseExample;
 import com.demcha.examples.flagships.ModuleFirstFileExample;
 import com.demcha.examples.templates.coverletter.v2.CvBlueBannerLetterV2Example;
@@ -150,6 +151,7 @@ public static void main(String[] args) throws Exception {
         // === Flagships ===
         System.out.println("Generated: " + ModuleFirstFileExample.generate());
         System.out.println("Generated: " + MasterShowcaseExample.generate());
+        System.out.println("Generated: " + FeatureCatalogExample.generate());
         System.out.println("Generated: " + BusinessReportExample.generate());
     }
 }