Add documentation for Invokable Engine annotations

- Created detailed markdown files for various annotations including #[Cast], #[DefaultValue], #[Explode], #[In], #[MapValue], #[Regex], #[Required], #[Sanitize], #[Scope], #[SkipIf], and #[Trim].
- Each annotation includes sections for parameters, usage examples, behavior, and combining with other attributes.
- Updated index.md to include an overview of the Invokable Engine and its features, along with a detailed explanation of the attribute pipeline and lifecycle.

Author: kettasoft

docs/.vuepress/config.js

@@ -75,7 +75,75 @@ export default defineUserConfig({
                 children: [
                     {
                         text: "Invokable",
-                        link: "engines/invokable",
+                        collapsible: true,
+                        children: [
+                            {
+                                text: "Overview",
+                                link: "engines/invokable/",
+                            },
+                            {
+                                text: "Annotations",
+                                collapsible: true,
+                                children: [
+                                    {
+                                        text: "Overview",
+                                        link: "engines/invokable/annotations/",
+                                    },
+                                    {
+                                        text: "Authorize",
+                                        link: "engines/invokable/annotations/authorize",
+                                    },
+                                    {
+                                        text: "SkipIf",
+                                        link: "engines/invokable/annotations/skip-if",
+                                    },
+                                    {
+                                        text: "Trim",
+                                        link: "engines/invokable/annotations/trim",
+                                    },
+                                    {
+                                        text: "Sanitize",
+                                        link: "engines/invokable/annotations/sanitize",
+                                    },
+                                    {
+                                        text: "Cast",
+                                        link: "engines/invokable/annotations/cast",
+                                    },
+                                    {
+                                        text: "DefaultValue",
+                                        link: "engines/invokable/annotations/default-value",
+                                    },
+                                    {
+                                        text: "MapValue",
+                                        link: "engines/invokable/annotations/map-value",
+                                    },
+                                    {
+                                        text: "Explode",
+                                        link: "engines/invokable/annotations/explode",
+                                    },
+                                    {
+                                        text: "Required",
+                                        link: "engines/invokable/annotations/required",
+                                    },
+                                    {
+                                        text: "In",
+                                        link: "engines/invokable/annotations/in",
+                                    },
+                                    {
+                                        text: "Between",
+                                        link: "engines/invokable/annotations/between",
+                                    },
+                                    {
+                                        text: "Regex",
+                                        link: "engines/invokable/annotations/regex",
+                                    },
+                                    {
+                                        text: "Scope",
+                                        link: "engines/invokable/annotations/scope",
+                                    },
+                                ],
+                            },
+                        ],
                     },
                     {
                         text: "Tree",

docs/engines/invokable/annotations/authorize.md

@@ -0,0 +1,84 @@
+---
+sidebarDepth: 1
+---
+
+# #[Authorize]
+
+**Stage:** `CONTROL` (1)
+
+Requires authorization before the filter method executes. If authorization fails, the filter is skipped entirely.
+
+---
+
+## Parameters
+
+| Parameter    | Type     | Required | Description                                                         |
+| ------------ | -------- | -------- | ------------------------------------------------------------------- |
+| `$authorize` | `string` | ✅       | Fully qualified class name implementing the `Authorizable` contract |
+
+---
+
+## Usage
+
+```php
+use Kettasoft\Filterable\Engines\Foundation\Attributes\Annotations\Authorize;
+
+#[Authorize(AdminOnly::class)]
+protected function secretField(Payload $payload)
+{
+    return $this->builder->where('secret_field', $payload->value);
+}
+```
+
+---
+
+## Authorizable Contract
+
+The class passed to `#[Authorize]` must implement `Kettasoft\Filterable\Contracts\Authorizable`:
+
+```php
+<?php
+
+namespace App\Filters\Authorizations;
+
+use Kettasoft\Filterable\Contracts\Authorizable;
+
+class AdminOnly implements Authorizable
+{
+    public function authorize(): bool
+    {
+        return auth()->user()?->is_admin ?? false;
+    }
+}
+```
+
+---
+
+## Behavior
+
+| Scenario                               | Result                                            |
+| -------------------------------------- | ------------------------------------------------- |
+| `authorize()` returns `true`           | Filter method executes normally                   |
+| `authorize()` returns `false`          | Filter is **skipped** (SkipExecution is thrown)    |
+| Class doesn't implement `Authorizable` | `InvalidArgumentException` is thrown              |
+
+---
+
+## Example: Role-Based Filter Access
+
+```php
+class RoleFilter implements Authorizable
+{
+    public function authorize(): bool
+    {
+        return auth()->user()?->hasRole('manager');
+    }
+}
+
+// In your filter class:
+#[Authorize(RoleFilter::class)]
+protected function salary(Payload $payload)
+{
+    return $this->builder->where('salary', '>=', $payload->value);
+}
+```

docs/engines/invokable/annotations/between.md

@@ -0,0 +1,86 @@
+---
+sidebarDepth: 1
+---
+
+# #[Between]
+
+**Stage:** `VALIDATE` (3)
+
+Validates that the payload value falls within a specified numeric range. If the value is outside the range or not numeric, the filter is **skipped**.
+
+---
+
+## Parameters
+
+| Parameter | Type          | Required | Description           |
+| --------- | ------------- | -------- | --------------------- |
+| `$min`    | `float\|int`  | ✅       | Minimum allowed value |
+| `$max`    | `float\|int`  | ✅       | Maximum allowed value |
+
+---
+
+## Usage
+
+### Integer Range
+
+```php
+use Kettasoft\Filterable\Engines\Foundation\Attributes\Annotations\Between;
+
+#[Between(min: 1, max: 100)]
+protected function views(Payload $payload)
+{
+    return $this->builder->where('views', '>=', $payload->value);
+}
+```
+
+### Float Range
+
+```php
+#[Between(min: 0.0, max: 5.0)]
+protected function rating(Payload $payload)
+{
+    return $this->builder->where('rating', '>=', $payload->value);
+}
+```
+
+---
+
+## Behavior
+
+| Scenario                            | Result                               |
+| ----------------------------------- | ------------------------------------ |
+| Value is numeric and within range   | Filter executes normally             |
+| Value is at the minimum boundary    | Filter executes normally (**inclusive**) |
+| Value is at the maximum boundary    | Filter executes normally (**inclusive**) |
+| Value is below the range            | Filter is **skipped**                |
+| Value is above the range            | Filter is **skipped**                |
+| Value is not numeric                | Filter is **skipped**                |
+
+---
+
+## Boundary Behavior
+
+The check is **inclusive** on both ends:
+
+```php
+#[Between(min: 1, max: 100)]
+// 1   → ✅ passes
+// 50  → ✅ passes
+// 100 → ✅ passes
+// 0   → ❌ skipped
+// 101 → ❌ skipped
+```
+
+---
+
+## Combining with Other Attributes
+
+```php
+#[SkipIf('empty')]
+#[Trim]
+#[Between(min: 1, max: 1000)]
+protected function price(Payload $payload)
+{
+    return $this->builder->where('price', '>=', $payload->value);
+}
+```

docs/engines/invokable/annotations/cast.md

@@ -0,0 +1,80 @@
+---
+sidebarDepth: 1
+---
+
+# #[Cast]
+
+**Stage:** `TRANSFORM` (2)
+
+Casts the payload value to a specific type using the Payload's `as*` methods.
+
+---
+
+## Parameters
+
+| Parameter | Type     | Required | Description                                          |
+| --------- | -------- | -------- | ---------------------------------------------------- |
+| `$type`   | `string` | ✅       | The target type name (maps to `Payload::as{Type}()`) |
+
+---
+
+## Supported Types
+
+| Type      | Maps To                 | Description                          |
+| --------- | ----------------------- | ------------------------------------ |
+| `int`     | `$payload->asInt()`     | Cast to integer                      |
+| `boolean` | `$payload->asBoolean()` | Cast to boolean                      |
+| `array`   | `$payload->asArray()`   | Decode JSON or return existing array |
+| `carbon`  | `$payload->asCarbon()`  | Parse to Carbon date instance        |
+| `slug`    | `$payload->asSlug()`    | Convert to URL-friendly slug         |
+| `like`    | `$payload->asLike()`    | Wrap with `%` for LIKE queries       |
+
+---
+
+## Usage
+
+### Cast to Integer
+
+```php
+use Kettasoft\Filterable\Engines\Foundation\Attributes\Annotations\Cast;
+
+#[Cast('int')]
+protected function views(Payload $payload)
+{
+    // "42" → 42
+    return $this->builder->where('views', '>=', $payload->value);
+}
+```
+
+### Cast to Boolean
+
+```php
+#[Cast('boolean')]
+protected function isFeatured(Payload $payload)
+{
+    // "true" → true, "false" → false
+    return $this->builder->where('is_featured', $payload->value);
+}
+```
+
+### Cast to Array (from JSON)
+
+```php
+#[Cast('array')]
+protected function tags(Payload $payload)
+{
+    // '["php","laravel"]' → ['php', 'laravel']
+    $tags = $payload->value;
+    return $this->builder->whereIn('tag', $tags);
+}
+```
+
+---
+
+## Behavior
+
+| Scenario                   | Result                          |
+| -------------------------- | ------------------------------- |
+| Cast type is supported     | Value is cast and returned      |
+| Cast type is not supported | `StrictnessException` is thrown |
+| Cast fails (invalid value) | `StrictnessException` is thrown |

docs/engines/invokable/annotations/default-value.md

@@ -0,0 +1,66 @@
+---
+sidebarDepth: 1
+---
+
+# #[DefaultValue]
+
+**Stage:** `TRANSFORM` (2)
+
+Sets a fallback value when the payload value is empty or null. The filter method still executes, but with the default value instead of the empty input.
+
+---
+
+## Parameters
+
+| Parameter | Type    | Required | Description                          |
+| --------- | ------- | -------- | ------------------------------------ |
+| `$value`  | `mixed` | ✅       | The default value to use as fallback |
+
+---
+
+## Usage
+
+```php
+use Kettasoft\Filterable\Engines\Foundation\Attributes\Annotations\DefaultValue;
+
+#[DefaultValue('active')]
+protected function status(Payload $payload)
+{
+    // If status is empty → uses "active"
+    return $this->builder->where('status', $payload->value);
+}
+```
+
+### With Numeric Default
+
+```php
+#[DefaultValue(10)]
+protected function perPage(Payload $payload)
+{
+    // If perPage is empty → uses 10
+    return $this->builder->limit($payload->value);
+}
+```
+
+---
+
+## Behavior
+
+| Scenario                       | Result                                    |
+| ------------------------------ | ----------------------------------------- |
+| Value is empty or null         | Payload value is set to the default       |
+| Value is provided (non-empty)  | Default is **not** applied, original kept |
+
+---
+
+## Combining with Other Attributes
+
+```php
+#[DefaultValue('pending')]
+#[In('active', 'pending', 'archived')]
+protected function status(Payload $payload)
+{
+    // Empty input → "pending" → passes In validation
+    return $this->builder->where('status', $payload->value);
+}
+```