chore: auto-commit (95 archivos)

- cmd/fn/doctor.go
- cmd/fn/main.go
- cpp/apps/primitives_gallery/playground/tables/CMakeLists.txt
- cpp/apps/primitives_gallery/playground/tables/data_table.cpp
- cpp/apps/primitives_gallery/playground/tables/data_table_logic.cpp
- cpp/apps/primitives_gallery/playground/tables/data_table_logic.h
- cpp/apps/primitives_gallery/playground/tables/self_test.cpp
- cpp/apps/primitives_gallery/playground/tables/tql.cpp
- cpp/apps/primitives_gallery/playground/tables/viz.cpp
- cpp/apps/primitives_gallery/playground/tables/viz.h
- ...

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

functions/infra/vault_diff.md

@@ -0,0 +1,49 @@
+---
+name: vault_diff
+kind: function
+lang: go
+domain: infra
+version: "1.0.0"
+purity: pure
+signature: "func VaultDiff(prev, curr []VaultFile) VaultDiffReport"
+description: "Computes the diff between two vault snapshots (slices of VaultFile). Returns Added, Removed, Changed and Unchanged counts. Pure and deterministic — no I/O."
+tags: [vault, diff, comparison, pure]
+uses_functions: []
+uses_types: ["vault_file_go_infra"]
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["sort"]
+tested: true
+tests:
+  - "TestVaultDiff_NoChanges"
+  - "TestVaultDiff_AllAdded"
+  - "TestVaultDiff_AllRemoved"
+  - "TestVaultDiff_ContentChanged"
+  - "TestVaultDiff_Mixed"
+test_file_path: "functions/infra/vault_diff_test.go"
+file_path: "functions/infra/vault_diff.go"
+params:
+  - name: prev
+    desc: "Snapshot anterior — slice de VaultFile del estado previo del vault (puede ser nil para diff desde cero)."
+  - name: curr
+    desc: "Snapshot actual — slice de VaultFile del estado corriente del vault (puede ser nil para diff de borrado total)."
+output: "VaultDiffReport con Added (nuevos), Removed (eliminados), Changed (mismo rel_path, sha256 distinto) y Unchanged (identicos). Todos los slices ordenados por RelPath ASC."
+---
+
+## Ejemplo
+
+```go
+prev, _ := infra.VaultInventoryScan(oldPath, "my_vault_proj", "my_vault")
+curr, _ := infra.VaultInventoryScan(newPath, "my_vault_proj", "my_vault")
+report := infra.VaultDiff(prev, curr)
+fmt.Printf("Added: %d, Removed: %d, Changed: %d, Unchanged: %d\n",
+    len(report.Added), len(report.Removed), len(report.Changed), report.Unchanged)
+```
+
+## Notas
+
+- Usa `RelPath` como clave de identidad de archivo (no nombre, no sha256).
+- Dos archivos con mismo `RelPath` pero diferente `Sha256` se consideran Changed.
+- Los slices del report se ordenan por `RelPath` ASC para salida deterministica.
+- Función pura: no toca disco ni BD.