feat(types): tipo Webpage + .gitignore del subrepo (issue 0027)

- examples/types.yaml: nuevo tipo Webpage (icono ti-file-text, fields
  url/title/status_code/content_type/fetched_at/html_path/markdown_path/
  screenshot_path/text_length/lang). Url queda como link suelto.
- types_registry.cpp: anade ti-file-text al mapa de codepoints Tabler.
- .gitignore: cache/, graph_explorer.db (jobs+layouts), build artifacts.

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

.gitignore

@@ -0,0 +1,13 @@
+# SQLite app DB (jobs + layouts) — local de cada PC
+graph_explorer.db
+graph_explorer.db-shm
+graph_explorer.db-wal
+
+# Cache de documentos descargados por enrichers (issue 0027)
+cache/
+
+# Build artifacts
+build/
+*.exe
+*.o
+*.obj

examples/types.yaml

@@ -110,6 +110,25 @@ entities:
       - { name: title,  type: string }
       - { name: domain, type: string }
 
+  # Documento web descargado. Issue 0027: tipo separado de Url para nodos
+  # con cuerpo cacheado (HTML+markdown+screenshot). Los enrichers
+  # fetch_webpage / extract_links / extract_text_entities lo pueblan.
+  - name: Webpage
+    color: "#89E0FC"
+    icon: ti-file-text
+    principal_field: url
+    fields:
+      - { name: url,             type: url, required: true }
+      - { name: title,           type: string }
+      - { name: status_code,     type: int }
+      - { name: content_type,    type: string }
+      - { name: fetched_at,      type: date }
+      - { name: html_path,       type: string }
+      - { name: markdown_path,   type: string }
+      - { name: screenshot_path, type: string }
+      - { name: text_length,     type: int }
+      - { name: lang,            type: string }
+
   # Nodo tabla — cuadrado (regla de forma). Issue 0010: contenedor con
   # filas que son nodos del grafo.
   - name: Table

types_registry.cpp

@@ -523,6 +523,7 @@ uint16_t tabler_codepoint_by_name(const char* name) {
         {"ti-at",            0xEA2B}, // TI_AT
         {"ti-home",          0xEAC1}, // TI_HOME
         {"ti-database",      0xEA88}, // TI_DATABASE
+        {"ti-file-text",     0xEAA2}, // TI_FILE_TEXT
     };
     auto it = map.find(name);
     if (it == map.end()) return 0;