feat(cv-v2): migrate Timeline Minimal preset + extract reusable timeline axis widget

examples/src/main/java/com/demcha/examples/templates/cv/v2/CvTimelineMinimalExample.java

@@ -0,0 +1,50 @@
+package com.demcha.examples.templates.cv.v2;
+
+import com.demcha.compose.GraphCompose;
+import com.demcha.compose.document.api.DocumentPageSize;
+import com.demcha.compose.document.api.DocumentSession;
+import com.demcha.compose.document.templates.api.DocumentTemplate;
+import com.demcha.compose.document.templates.cv.v2.data.CvDocument;
+import com.demcha.compose.document.templates.cv.v2.presets.TimelineMinimal;
+import com.demcha.examples.support.ExampleDataFactory;
+import com.demcha.examples.support.ExampleOutputPaths;
+
+import java.nio.file.Path;
+
+/**
+ * Renders the v2 Timeline Minimal CV preset against the shared
+ * grouped skills sample data — spaced uppercase Barlow Condensed
+ * name, right-aligned contact stack with PNG icons, and the central
+ * vertical timeline axis (4 segments / 3 circles) separating the
+ * sidebar (Education / Skills / Expertise / Languages) from the main
+ * column (Professional Profile / Work Experience).
+ *
+ * <p>Output:
+ * {@code examples/target/generated-pdfs/templates/cv/cv-timeline-minimal-v2.pdf}.</p>
+ */
+public final class CvTimelineMinimalExample {
+
+    private CvTimelineMinimalExample() {
+    }
+
+    public static Path generate() throws Exception {
+        Path outputFile = ExampleOutputPaths.prepare(
+                "templates/cv", "cv-timeline-minimal-v2.pdf");
+        CvDocument doc = ExampleDataFactory.sampleCvDocumentV2();
+        DocumentTemplate<CvDocument> template = TimelineMinimal.create();
+
+        float m = (float) TimelineMinimal.RECOMMENDED_MARGIN;
+        try (DocumentSession document = GraphCompose.document(outputFile)
+                .pageSize(DocumentPageSize.A4)
+                .margin(m, m, m, m)
+                .create()) {
+            template.compose(document, doc);
+            document.buildPdf();
+        }
+        return outputFile;
+    }
+
+    public static void main(String[] args) throws Exception {
+        System.out.println("Generated: " + generate());
+    }
+}

src/main/java/com/demcha/compose/document/templates/cv/v2/theme/CvPalette.java

@@ -123,6 +123,21 @@ public static CvPalette editorialBlue() {
                 DocumentColor.rgb(193, 201, 211));
     }
 
+    /**
+     * Timeline Minimal palette: an all-grey scale ported from the v1
+     * {@code TimelineMinimalCvTemplateComposer} — medium-grey ink,
+     * softer grey for metadata + body bullets, pale rule for the
+     * timeline axis and module underlines, and the dot token reused
+     * for the three circles of the central timeline axis.
+     */
+    public static CvPalette timelineMinimal() {
+        return new CvPalette(
+                DocumentColor.rgb(74, 74, 74),     // ink — V1 INK
+                DocumentColor.rgb(122, 122, 122),  // muted — V1 SOFT
+                DocumentColor.rgb(195, 195, 195),  // rule — V1 RULE
+                DocumentColor.rgb(170, 170, 170)); // banner — V1 DOT (reused as "timeline accent")
+    }
+
     /**
      * Panel palette ported from the v1 {@code PanelCvTemplateComposer}
      * (ProductLeader tokens): body slate ink, slightly lighter slate

src/main/java/com/demcha/compose/document/templates/cv/v2/theme/CvSpacing.java

@@ -279,6 +279,30 @@ public static CvSpacing editorialBlue() {
                 3.0);                                    // entrySeparation
     }
 
+    /**
+     * Spacing for the Timeline Minimal preset: tight 3-column layout
+     * with a fixed-width axis between the sidebar and main column.
+     * Body content is text-only (no cards / banners), so banner
+     * tokens are unused but kept at neutral defaults.
+     */
+    public static CvSpacing timelineMinimal() {
+        return new CvSpacing(
+                12,                                      // pageFlowSpacing (gap between header row + rule + body row)
+                5,                                       // sectionBodySpacing
+                DocumentInsets.zero(),                   // sectionBodyPadding
+                DocumentInsets.zero(),                   // headlinePadding
+                DocumentInsets.zero(),                   // contactPadding
+                0.0,                                     // bannerCornerRadius (unused)
+                0.0,                                     // bannerInnerPadding (unused)
+                DocumentInsets.zero(),                   // bannerMargin (unused)
+                0.8,                                     // accentRuleWidth (header underline)
+                1.0,                                     // paragraphMarginTop
+                8.0,                                     // entryHeaderRowSpacing
+                1.0,                                     // entryTitleWeight
+                0.45,                                    // entryDateWeight
+                2.0);                                    // entrySeparation
+    }
+
     /**
      * Spacing for the Panel preset: card-led layout that has to fit
      * Header / Profile / two-column row / Additional on one A4 page,

src/main/java/com/demcha/compose/document/templates/cv/v2/theme/CvTheme.java

@@ -167,6 +167,22 @@ public static CvTheme editorialBlue() {
                 CvDecoration.classic());
     }
 
+    /**
+     * The "Timeline Minimal" look — Barlow Condensed display + Lato
+     * body, all-grey palette, spaced uppercase name, right-aligned
+     * contact stack with PNG icons, and a thin vertical timeline axis
+     * with three circles separating the sidebar from the main column.
+     * Visual signature ported from the v1
+     * {@code TimelineMinimalCvTemplateComposer}.
+     */
+    public static CvTheme timelineMinimal() {
+        return new CvTheme(
+                CvPalette.timelineMinimal(),
+                CvTypography.timelineMinimal(),
+                CvSpacing.timelineMinimal(),
+                CvDecoration.classic());
+    }
+
     /**
      * The "Panel" look — Poppins headlines + Lato body, pale teal
      * header card and module panels with thin teal stroke, deep navy

src/main/java/com/demcha/compose/document/templates/cv/v2/theme/CvTypography.java

@@ -191,6 +191,26 @@ public static CvTypography editorialBlue() {
                 1.45);   // line spacing
     }
 
+    /**
+     * Barlow Condensed headline + Lato body scale ported from the v1
+     * {@code TimelineMinimalCvTemplateComposer}: 28pt spaced-caps
+     * masthead, 12.5pt sidebar module titles, 13.5pt main module
+     * titles, 7.5-7.9pt body. Compact sizes squeeze the 3-column
+     * sidebar / axis / main layout onto one page.
+     */
+    public static CvTypography timelineMinimal() {
+        return new CvTypography(
+                FontName.BARLOW_CONDENSED, FontName.LATO,
+                28.0,    // headline (spaced uppercase masthead)
+                7.8,     // contact (right-aligned contact stack)
+                13.5,    // banner / main module title
+                12.5,    // entry title (reused as sidebar module title size)
+                7.9,     // entry date (body size in main)
+                7.5,     // entry subtitle (sidebar body size)
+                7.8,     // body
+                1.2);    // line spacing
+    }
+
     /**
      * Poppins headline + Lato body scale ported from the v1
      * {@code PanelCvTemplateComposer} (ProductLeader tokens): a 22pt