docs(high-level): register datalake examples as unclustered High-Level variants (fixes #55) (#100)

Added descriptions for the shipped datalake examples (example-datalake.html,
-datalake-dark.html, -datalake-full.html) to the High-Level type reference,
categorising the five-phase data stack as an unclustered High-Level variant.

.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "diagram-design",
   "description": "Create branded architecture, IT current-state, flowchart, sequence, state machine, ER/data model, timeline, swimlane, quadrant, radar/spider, loop/flywheel, nested, tree, org chart, layer stack, Venn, pyramid/funnel, treemap, bar, line, Gantt and scatter charts, high-level, process, medallion, data flow, DP integration, or DP security matrix diagrams as standalone HTML/SVG/PNG. Redraw .drawio/.drawio.png/.drawio.svg or Mermaid .mmd sources at a chosen size/detail; onboard brand tokens from a website; add semantic patterns, callouts, accessible motion, or sketchy/hand-drawn styling.",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "author": {
     "name": "Cathryn Lavery",
     "url": "https://github.com/cathrynlavery"

.codex-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "diagram-design",
   "description": "Create branded architecture, IT current-state, flowchart, sequence, state machine, ER/data model, timeline, swimlane, quadrant, radar/spider, loop/flywheel, nested, tree, org chart, layer stack, Venn, pyramid/funnel, treemap, bar, line, Gantt and scatter charts, high-level, process, medallion, data flow, DP integration, or DP security matrix diagrams as standalone HTML/SVG/PNG. Redraw .drawio/.drawio.png/.drawio.svg or Mermaid .mmd sources at a chosen size/detail; onboard brand tokens from a website; add semantic patterns, callouts, accessible motion, or sketchy/hand-drawn styling.",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "author": {
     "name": "Cathryn Lavery",
     "url": "https://github.com/cathrynlavery"

skills/diagram-design/references/type-high-level.md

@@ -456,3 +456,6 @@ Before emitting SVG, verify **every** item. If any fails, fix it — don't ship.
 - `assets/example-high-level-vertical.html` — adds vertical Orchestration + Security chevrons, Airflow bar, Keycloak cross-cutting. **Reference render of the full parametric pattern.**
 - `assets/example-high-level-vertical-dark.html` — vertical pattern, dark skin.
 - `assets/example-high-level-vertical-full.html` — vertical pattern, editorial-card frame.
+- `assets/example-datalake.html` — unclustered five-phase data stack (Sources → Ingest → Data Lake → Query → Consume), zone-based flow without a container-orchestrator boundary. The MinIO lake is the focal node; vertical concerns are flattened into the horizontal chevron banner. Light skin.
+- `assets/example-datalake-dark.html` — same, dark skin.
+- `assets/example-datalake-full.html` — same, editorial-card frame.