chore(auto): construir iter 1 — añadir e2e_checks a chart_demo app.md

Adds e2e_checks block with 2 checks:
- build: cmake --build cpp/build/windows --target chart_demo -j (timeout 300s)
- binary_exists: test -f cpp/build/windows/apps/chart_demo/chart_demo.exe (timeout 5s)

Part of autonomous task_run task_b3069559f34415c3 for issue 0120.

Co-Authored-By: fn-orquestador <noreply@anthropic.com>

app.md

@@ -2,6 +2,7 @@
 name: chart_demo
 lang: cpp
 domain: viz
+version: 0.1.0
 description: "Demo ImGui de primitivos viz del registry: line_plot, scatter_plot, bar_chart, heatmap. Cada chart en su propia tab del TabBar. Usado como showcase y como build gate de las funciones viz/."
 tags: [imgui, demo, charts, viz, showcase]
 uses_functions:
@@ -18,6 +19,13 @@ repo_url: ""
 icon:
   phosphor: "chart-bar"
   accent: "#0ea5e9"
+e2e_checks:
+  - id: build
+    cmd: "cmake --build cpp/build/windows --target chart_demo -j"
+    timeout_s: 300
+  - id: binary_exists
+    cmd: "test -f cpp/build/windows/apps/chart_demo/chart_demo.exe"
+    timeout_s: 5
 ---
 
 ## Que hace
@@ -61,3 +69,13 @@ cd cpp && cmake -B build/windows -S . -DCMAKE_TOOLCHAIN_FILE=toolchains/mingw-w6
 - Sin persistencia propia (no abre BD).
 - `log: file_path = "chart_demo.log"` con nivel Debug — el `init_data`
   emite info+debug para verificar que el logger funciona.
+
+
+## Capability growth log
+
+Una linea por bump SemVer. Bump-type segun `.claude/commands/version.md`:
+- `major`: breaking observable (CLI args, schema BBDD propia, formato wire).
+- `minor`: feature aditiva (nuevo panel, endpoint, opcion).
+- `patch`: bugfix sin cambio observable.
+
+- v0.1.0 (2026-05-18) — baseline.