feat(Production): Complete production deployment infrastructure

- Add comprehensive health check system with multiple endpoints
- Add Prometheus metrics endpoint
- Add production logging configurations (5 strategies)
- Add complete deployment documentation suite:
  * QUICKSTART.md - 30-minute deployment guide
  * DEPLOYMENT_CHECKLIST.md - Printable verification checklist
  * DEPLOYMENT_WORKFLOW.md - Complete deployment lifecycle
  * PRODUCTION_DEPLOYMENT.md - Comprehensive technical reference
  * production-logging.md - Logging configuration guide
  * ANSIBLE_DEPLOYMENT.md - Infrastructure as Code automation
  * README.md - Navigation hub
  * DEPLOYMENT_SUMMARY.md - Executive summary
- Add deployment scripts and automation
- Add DEPLOYMENT_PLAN.md - Concrete plan for immediate deployment
- Update README with production-ready features

All production infrastructure is now complete and ready for deployment.

tests/Unit/Framework/LiveComponents/SlotManagerTest.php

@@ -0,0 +1,423 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Framework\LiveComponents\Contracts\SupportsSlots;
+use App\Framework\LiveComponents\SlotManager;
+use App\Framework\LiveComponents\ValueObjects\ComponentId;
+use App\Framework\LiveComponents\ValueObjects\SlotContent;
+use App\Framework\LiveComponents\ValueObjects\SlotContext;
+use App\Framework\LiveComponents\ValueObjects\SlotDefinition;
+
+describe('SlotManager', function () {
+    beforeEach(function () {
+        $this->slotManager = new SlotManager();
+    });
+
+    it('registers and retrieves slot contents', function () {
+        $componentId = ComponentId::generate();
+        $contents = [
+            SlotContent::named('header', '<h1>Header</h1>'),
+            SlotContent::named('body', '<p>Body</p>'),
+        ];
+
+        $this->slotManager->registerSlotContents($componentId, $contents);
+
+        $retrieved = $this->slotManager->getSlotContents($componentId);
+
+        expect($retrieved)->toHaveCount(2);
+        expect($retrieved[0]->slotName)->toBe('header');
+        expect($retrieved[1]->slotName)->toBe('body');
+    });
+
+    it('resolves provided content over default content', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [
+                    SlotDefinition::named('header', '<h2>Default Header</h2>'),
+                ];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::empty();
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                return $content;
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        $definition = SlotDefinition::named('header', '<h2>Default Header</h2>');
+        $providedContent = [
+            SlotContent::named('header', '<h1>Custom Header</h1>'),
+        ];
+
+        $result = $this->slotManager->resolveSlotContent(
+            $component,
+            $definition,
+            $providedContent
+        );
+
+        expect($result)->toBe('<h1>Custom Header</h1>');
+    });
+
+    it('uses default content when no content provided', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [
+                    SlotDefinition::named('header', '<h2>Default Header</h2>'),
+                ];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::empty();
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                return $content;
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        $definition = SlotDefinition::named('header', '<h2>Default Header</h2>');
+        $providedContent = [];
+
+        $result = $this->slotManager->resolveSlotContent(
+            $component,
+            $definition,
+            $providedContent
+        );
+
+        expect($result)->toBe('<h2>Default Header</h2>');
+    });
+
+    it('injects scoped context into slot content', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [
+                    SlotDefinition::scoped('content', ['userId', 'userName']),
+                ];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::create([
+                    'userId' => 123,
+                    'userName' => 'John Doe',
+                ]);
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                return $content;
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        $definition = SlotDefinition::scoped('content', ['userId', 'userName']);
+        $providedContent = [
+            SlotContent::named('content', '<p>User: {context.userName} (ID: {context.userId})</p>'),
+        ];
+
+        $result = $this->slotManager->resolveSlotContent(
+            $component,
+            $definition,
+            $providedContent
+        );
+
+        expect($result)->toBe('<p>User: John Doe (ID: 123)</p>');
+    });
+
+    it('validates required slots', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [
+                    SlotDefinition::named('body')->withRequired(true),
+                    SlotDefinition::named('footer'),
+                ];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::empty();
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                return $content;
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        // No content provided
+        $errors = $this->slotManager->validateSlots($component, []);
+
+        expect($errors)->toContain("Required slot 'body' is not filled");
+    });
+
+    it('validates slots with content provided', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [
+                    SlotDefinition::named('body')->withRequired(true),
+                ];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::empty();
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                return $content;
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        $providedContent = [
+            SlotContent::named('body', '<p>Body content</p>'),
+        ];
+
+        $errors = $this->slotManager->validateSlots($component, $providedContent);
+
+        expect($errors)->toBeEmpty();
+    });
+
+    it('checks if component has specific slot', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [
+                    SlotDefinition::named('header'),
+                    SlotDefinition::named('body'),
+                ];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::empty();
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                return $content;
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        expect($this->slotManager->hasSlot($component, 'header'))->toBeTrue();
+        expect($this->slotManager->hasSlot($component, 'body'))->toBeTrue();
+        expect($this->slotManager->hasSlot($component, 'footer'))->toBeFalse();
+    });
+
+    it('gets slot definition by name', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [
+                    SlotDefinition::named('header', '<h1>Default</h1>'),
+                ];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::empty();
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                return $content;
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        $definition = $this->slotManager->getSlotDefinition($component, 'header');
+
+        expect($definition)->not->toBeNull();
+        expect($definition->name)->toBe('header');
+        expect($definition->defaultContent)->toBe('<h1>Default</h1>');
+    });
+
+    it('returns null for unknown slot', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::empty();
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                return $content;
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        $definition = $this->slotManager->getSlotDefinition($component, 'unknown');
+
+        expect($definition)->toBeNull();
+    });
+
+    it('processes slot content through component hook', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [
+                    SlotDefinition::named('body'),
+                ];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::empty();
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                // Wrap content in div
+                return $content->withContent('<div class="wrapper">' . $content->content . '</div>');
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        $definition = SlotDefinition::named('body');
+        $providedContent = [
+            SlotContent::named('body', '<p>Content</p>'),
+        ];
+
+        $result = $this->slotManager->resolveSlotContent(
+            $component,
+            $definition,
+            $providedContent
+        );
+
+        expect($result)->toBe('<div class="wrapper"><p>Content</p></div>');
+    });
+
+    it('escapes HTML in scoped context values', function () {
+        $component = new class () implements SupportsSlots {
+            public function getSlotDefinitions(): array
+            {
+                return [
+                    SlotDefinition::scoped('content', ['userInput']),
+                ];
+            }
+
+            public function getSlotContext(string $slotName): SlotContext
+            {
+                return SlotContext::create([
+                    'userInput' => '<script>alert("XSS")</script>',
+                ]);
+            }
+
+            public function processSlotContent(SlotContent $content): SlotContent
+            {
+                return $content;
+            }
+
+            public function validateSlots(array $providedSlots): array
+            {
+                return [];
+            }
+        };
+
+        $definition = SlotDefinition::scoped('content', ['userInput']);
+        $providedContent = [
+            SlotContent::named('content', '<p>{context.userInput}</p>'),
+        ];
+
+        $result = $this->slotManager->resolveSlotContent(
+            $component,
+            $definition,
+            $providedContent
+        );
+
+        expect($result)->toContain('&lt;script&gt;');
+        expect($result)->not->toContain('<script>');
+    });
+
+    it('provides slot statistics', function () {
+        $componentId1 = ComponentId::generate();
+        $componentId2 = ComponentId::generate();
+
+        $this->slotManager->registerSlotContents($componentId1, [
+            SlotContent::named('header', '<h1>H1</h1>'),
+            SlotContent::named('body', '<p>Body</p>'),
+        ]);
+
+        $this->slotManager->registerSlotContents($componentId2, [
+            SlotContent::named('footer', '<footer>Footer</footer>'),
+        ]);
+
+        $stats = $this->slotManager->getStats();
+
+        expect($stats['total_components_with_slots'])->toBe(2);
+        expect($stats['total_slot_contents'])->toBe(3);
+        expect($stats['avg_slots_per_component'])->toBe(1.5);
+    });
+
+    it('clears all registered slot contents', function () {
+        $componentId = ComponentId::generate();
+
+        $this->slotManager->registerSlotContents($componentId, [
+            SlotContent::named('header', '<h1>Header</h1>'),
+        ]);
+
+        expect($this->slotManager->getSlotContents($componentId))->toHaveCount(1);
+
+        $this->slotManager->clear();
+
+        expect($this->slotManager->getSlotContents($componentId))->toBeEmpty();
+    });
+});