Fix DocumentationCoverageTest after slim README rewrite

CI was red after v1.5.0 because four section-anchored guards in
DocumentationCoverageTest expected README sections that the slim
landing-page rewrite removed:
- readmeQuickStartShouldUseCanonicalDsl     anchored on "### Built-in templates (compose-first)"
- readmeLinePrimitiveSectionShouldUseCanonicalDsl anchored on "## Line primitive"
- readmeTableSectionShouldUseCanonicalDsl   anchored on "## Table component"
- readmeContainerGuidanceShouldPreferCanonicalDsl anchored on "### 4. Containers express structure"

Those sections were intentionally cut to slim README from 778 → 151
lines; their content lives in docs/recipes/{tables,shapes,themes}.md
and examples/README.md now.

Replaced the four section-specific tests with one consolidated guard
(readmeShouldUseCanonicalDslAndAvoidLegacyApis) that scans the whole
README:
- Asserts canonical-DSL fingerprints (GraphCompose.document,
  DocumentSession, document.pageFlow, BusinessTheme) appear at least
  once
- Asserts no legacy markers anywhere in the README — same blocklist
  as before plus PdfComposer / TemplateBuilder / MainPageCV /
  MainPageCvDTO / ModuleYml so the guard now matches what
  CanonicalSurfaceGuardTest enforces for documentation files

Net test delta: -4 + 1 = -3 tests. Suite count drops 675 → 672.
README footer claim updated to match.

JitPack publishes via -DskipTests (jitpack.yml), so the v1.5.0
artifact is unaffected — this is a CI-only hotfix.

Author: DemchaAV

README.md

@@ -27,7 +27,7 @@ Most Java PDF libraries hand you low-level drawing commands. GraphCompose gives
 - **Atomic pagination, no manual paging.** Tables split row-by-row, rows are atomic, layer stacks are atomic.
 - **Designer-grade output.** Page backgrounds, section bands, soft panels, accent strips, column spans, layered hero blocks, fluent rich text, and a tokenised `BusinessTheme` are all first-class — not workarounds.
 - **PDFBox rendering, isolated.** PDF backend lives behind a single backend interface. The DOCX backend (Apache POI) is ready for callers who need an editable file.
-- **Tested at every layer.** 675 green tests on `develop` (525 → 675 across v1.5), including cinematic-feature tests, shape-as-container clip-path invariants, transform CTM checks, table row-span / zebra / repeated-header tests, public-API leak guards, and a `PdfVisualRegression` harness.
+- **Tested at every layer.** 672 green tests on `develop` (525 → 672 across v1.5), including cinematic-feature tests, shape-as-container clip-path invariants, transform CTM checks, table row-span / zebra / repeated-header tests, public-API leak guards, and a `PdfVisualRegression` harness.
 
 The current release is **v1.5.0** — the "intuitive" release. v1.5 turns the surface intuitive: shape-as-container with clip path, rotate / scale + per-layer z-index, advanced tables (row span, zebra, totals, repeating header), and two new theme-driven cinematic templates (`InvoiceTemplateV2`, `ProposalTemplateV2`). v1.5 is fully source-compatible with v1.4 — every public record gained back-compat constructors that default the new fields. See [`docs/migration-v1-4-to-v1-5.md`](docs/migration-v1-4-to-v1-5.md).
 

src/test/java/com/demcha/documentation/DocumentationCoverageTest.java

@@ -136,77 +136,36 @@ void highLevelApiAnchorsShouldRetainMethodJavadocs() throws IOException {
     }
 
     @Test
-    void readmeQuickStartShouldUseCanonicalDsl() throws IOException {
+    void readmeShouldUseCanonicalDslAndAvoidLegacyApis() throws IOException {
         String readme = Files.readString(PROJECT_ROOT.resolve("README.md"));
-        int quickStart = readme.indexOf("## Quick start");
-        int builtIns = readme.indexOf("### Built-in templates (compose-first)");
-        assertThat(quickStart).isGreaterThanOrEqualTo(0);
-        assertThat(builtIns).isGreaterThan(quickStart);
-
-        String quickStartSection = readme.substring(quickStart, builtIns);
-        assertThat(quickStartSection).contains("GraphCompose.document(Path.of(\"output.pdf\"))");
-        assertThat(quickStartSection).contains("document.pageFlow(page -> page");
-        assertThat(quickStartSection).contains(".module(\"Summary\", module -> module.paragraph(\"Hello GraphCompose\"))");
-        assertThat(quickStartSection).doesNotContain("import com.demcha.compose.engine");
-        assertThat(quickStartSection).doesNotContain("document.dsl()");
-        assertThat(quickStartSection).doesNotContain("try (PdfComposer composer = GraphCompose.pdf(");
-    }
-
-    @Test
-    void readmeLinePrimitiveSectionShouldUseCanonicalDsl() throws IOException {
-        String readme = Files.readString(PROJECT_ROOT.resolve("README.md"));
-        int linePrimitive = readme.indexOf("## Line primitive");
-        int architecture = readme.indexOf("## Architecture at a glance");
-        assertThat(linePrimitive).isGreaterThanOrEqualTo(0);
-        assertThat(architecture).isGreaterThan(linePrimitive);
-
-        String linePrimitiveSection = readme.substring(linePrimitive, architecture);
-        assertThat(linePrimitiveSection).contains("document.pageFlow()");
-        assertThat(linePrimitiveSection).contains(".addDivider(");
-        assertThat(linePrimitiveSection).contains(".addShape(");
-        assertThat(linePrimitiveSection).contains("DocumentColor.ROYAL_BLUE");
-        assertThat(linePrimitiveSection).doesNotContain("ComponentColor.");
-        assertThat(linePrimitiveSection).doesNotContain("document.dsl()");
-        assertThat(linePrimitiveSection).doesNotContain("composer.componentBuilder()");
-        assertThat(linePrimitiveSection).doesNotContain("GraphCompose.pdf(");
-    }
 
-    @Test
-    void readmeTableSectionShouldUseCanonicalDsl() throws IOException {
-        String readme = Files.readString(PROJECT_ROOT.resolve("README.md"));
-        int tableComponent = readme.indexOf("## Table component");
-        int linePrimitive = readme.indexOf("## Line primitive");
-        assertThat(tableComponent).isGreaterThanOrEqualTo(0);
-        assertThat(linePrimitive).isGreaterThan(tableComponent);
-
-        String tableSection = readme.substring(tableComponent, linePrimitive);
-        assertThat(tableSection).contains("document.pageFlow()");
-        assertThat(tableSection).contains(".addTable(");
-        assertThat(tableSection).contains(".header(");
-        assertThat(tableSection).contains(".rows(");
-        assertThat(tableSection).contains("DocumentTableColumn.fixed(90)");
-        assertThat(tableSection).doesNotContain("TableColumnLayout.");
-        assertThat(tableSection).doesNotContain("TableCellLayoutStyle.");
-        assertThat(tableSection).doesNotContain(".row(\"Role\", \"Owner\", \"Status\")");
-        assertThat(tableSection).doesNotContain("document.dsl()");
-        assertThat(tableSection).doesNotContain("composer.componentBuilder()");
-        assertThat(tableSection).doesNotContain("GraphCompose.pdf(");
-    }
-
-    @Test
-    void readmeContainerGuidanceShouldPreferCanonicalDsl() throws IOException {
-        String readme = Files.readString(PROJECT_ROOT.resolve("README.md"));
-        int containers = readme.indexOf("### 4. Containers express structure");
-        int templateLayer = readme.indexOf("### 5. The template layer is optional");
-        assertThat(containers).isGreaterThanOrEqualTo(0);
-        assertThat(templateLayer).isGreaterThan(containers);
-
-        String containersSection = readme.substring(containers, templateLayer);
-        assertThat(containersSection).contains("document.pageFlow()");
-        assertThat(containersSection).contains("section()");
-        assertThat(containersSection).doesNotContain("vContainer(");
-        assertThat(containersSection).doesNotContain("hContainer(");
-        assertThat(containersSection).doesNotContain("moduleBuilder(");
+        // Canonical-DSL fingerprints — the slim v1.5 landing README must
+        // surface at least one example using the canonical authoring path.
+        assertThat(readme).contains("GraphCompose.document(");
+        assertThat(readme).contains("DocumentSession");
+        assertThat(readme).contains("document.pageFlow(");
+        assertThat(readme).contains("BusinessTheme");
+
+        // Legacy-API guard — the README may not advertise any retired
+        // entry point, builder shape, or pre-canonical field-based CV
+        // type, even if examples that demonstrate them still exist
+        // elsewhere in the codebase.
+        assertThat(readme)
+                .doesNotContain("import com.demcha.compose.engine")
+                .doesNotContain("document.dsl()")
+                .doesNotContain("composer.componentBuilder()")
+                .doesNotContain("GraphCompose.pdf(")
+                .doesNotContain("PdfComposer")
+                .doesNotContain("TemplateBuilder")
+                .doesNotContain("ComponentColor.")
+                .doesNotContain("TableColumnLayout.")
+                .doesNotContain("TableCellLayoutStyle.")
+                .doesNotContain("vContainer(")
+                .doesNotContain("hContainer(")
+                .doesNotContain("moduleBuilder(")
+                .doesNotContain("MainPageCV")
+                .doesNotContain("MainPageCvDTO")
+                .doesNotContain("ModuleYml");
     }
 
     @Test