docs: templates de frontmatter YAML para function, pipeline, component y type

Añade plantillas de referencia que documentan el formato exacto
del frontmatter YAML que cada .md debe seguir. Cubren los cuatro
kinds: function, pipeline, component y type.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/templates/component.md

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+---
+name: DataTable
+kind: component
+lang: typescript
+domain: core
+version: "1.0.0"
+purity: impure
+signature: "DataTable<T>(props: { data: T[]; columns: ColumnDef<T>[]; onRowClick?: (row: T) => void }): JSX.Element"
+description: "Tabla de datos generica con soporte para columnas configurables y click en fila."
+tags: [table, component, generic, ui]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: [react]
+tested: false
+tests: []
+test_file_path: ""
+file_path: "functions/components/DataTable.tsx"
+props:
+  - name: data
+    type: "T[]"
+    required: true
+    description: "Array de datos a renderizar"
+  - name: columns
+    type: "ColumnDef<T>[]"
+    required: true
+    description: "Definicion de columnas"
+  - name: onRowClick
+    type: "(row: T) => void"
+    required: false
+    description: "Callback al hacer click en una fila"
+emits: [onRowClick]
+has_state: true
+framework: react
+variant: [default, compact, striped]
+---
+
+## Ejemplo
+
+```tsx
+<DataTable data={users} columns={cols} onRowClick={handleClick} />
+```
+
+## Notas
+
+Componente con estado interno para manejar seleccion y scroll.

docs/templates/function.md

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+---
+name: filter_slice
+kind: function
+lang: go
+domain: core
+version: "1.0.0"
+purity: pure
+signature: "func FilterSlice[T any](xs []T, pred func(T) bool) []T"
+description: "Filtra un slice aplicando un predicado sin mutar el original."
+tags: [slice, functional, generic]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: []
+tested: false
+tests: []
+test_file_path: ""
+file_path: "functions/core/filter_slice.go"
+---
+
+## Ejemplo
+
+```go
+evens := FilterSlice([]int{1, 2, 3, 4}, func(n int) bool { return n%2 == 0 })
+// evens = [2, 4]
+```
+
+## Notas
+
+Funcion pura generica. No muta el slice original — crea uno nuevo.

docs/templates/pipeline.md

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+---
+name: tick_to_ohlcv
+kind: pipeline
+lang: go
+domain: finance
+version: "1.0.0"
+purity: impure
+signature: "func TickToOHLCV(ctx context.Context, symbol string, interval time.Duration) ([]OHLCV, error)"
+description: "Pipeline que obtiene ticks de un exchange y los agrega en velas OHLCV."
+tags: [pipeline, finance, ohlcv, ticks]
+uses_functions: [fetch_ticks_go_io, aggregate_ohlcv_go_finance]
+uses_types: [ohlcv_go_finance, tick_go_finance]
+returns: [ohlcv_go_finance]
+returns_optional: false
+error_type: "error_go_core"
+imports: []
+tested: false
+tests: []
+test_file_path: ""
+file_path: "functions/pipelines/tick_to_ohlcv.go"
+---
+
+## Ejemplo
+
+```go
+candles, err := TickToOHLCV(ctx, "BTCUSDT", 5*time.Minute)
+```
+
+## Notas
+
+Pipeline impuro: orquesta fetch_ticks (IO) y aggregate_ohlcv (pura).

docs/templates/type.md

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+---
+name: ohlcv
+lang: go
+domain: finance
+version: "1.0.0"
+algebraic: product
+definition: |
+  type OHLCV struct {
+      Open   float64
+      High   float64
+      Low    float64
+      Close  float64
+      Volume float64
+  }
+description: "Vela de mercado con precios de apertura, maximo, minimo, cierre y volumen."
+tags: [finance, market, candle]
+uses_types: []
+file_path: "types/finance/ohlcv.go"
+---
+
+## Notas
+
+Tipo producto — todos los campos siempre presentes. Modela una vela de mercado.