Prepare production branch: remove test files and add Dockerfile

- Remove all test files (__tests__, *.test.*, *.spec.*)
- Remove Jest configuration files (jest.config.js, jest.setup.js)
- Remove test-related scripts from package.json
- Remove Jest dependencies from package.json
- Add production Dockerfile for standalone Next.js app
- Update tsconfig.json exclusions

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

__tests__/lib/validation.test.ts

@@ -1,137 +0,0 @@
-import {
-  userRegistrationSchema,
-  userLoginSchema,
-  chatMessageSchema,
-  prayerRequestSchema,
-  bookmarkSchema,
-  searchSchema,
-  chapterSchema
-} from '@/lib/validation'
-
-describe('Validation Schemas', () => {
-  describe('userRegistrationSchema', () => {
-    it('should validate correct user registration data', () => {
-      const validData = {
-        email: 'test@example.com',
-        password: 'Password123',
-        name: 'Test User'
-      }
-
-      const result = userRegistrationSchema.safeParse(validData)
-      expect(result.success).toBe(true)
-    })
-
-    it('should reject invalid email', () => {
-      const invalidData = {
-        email: 'invalid-email',
-        password: 'Password123',
-        name: 'Test User'
-      }
-
-      const result = userRegistrationSchema.safeParse(invalidData)
-      expect(result.success).toBe(false)
-    })
-
-    it('should reject weak password', () => {
-      const invalidData = {
-        email: 'test@example.com',
-        password: 'weak',
-        name: 'Test User'
-      }
-
-      const result = userRegistrationSchema.safeParse(invalidData)
-      expect(result.success).toBe(false)
-    })
-  })
-
-  describe('chatMessageSchema', () => {
-    it('should validate correct chat message data', () => {
-      const validData = {
-        messages: [
-          { role: 'user', content: 'Hello' },
-          { role: 'assistant', content: 'Hi there!' }
-        ]
-      }
-
-      const result = chatMessageSchema.safeParse(validData)
-      expect(result.success).toBe(true)
-    })
-
-    it('should reject empty messages array', () => {
-      const invalidData = {
-        messages: []
-      }
-
-      const result = chatMessageSchema.safeParse(invalidData)
-      expect(result.success).toBe(false)
-    })
-  })
-
-  describe('prayerRequestSchema', () => {
-    it('should validate correct prayer request', () => {
-      const validData = {
-        content: 'Please pray for my family during this difficult time.',
-        isAnonymous: true
-      }
-
-      const result = prayerRequestSchema.safeParse(validData)
-      expect(result.success).toBe(true)
-    })
-
-    it('should reject too short prayer request', () => {
-      const invalidData = {
-        content: 'Short',
-        isAnonymous: true
-      }
-
-      const result = prayerRequestSchema.safeParse(invalidData)
-      expect(result.success).toBe(false)
-    })
-  })
-
-  describe('searchSchema', () => {
-    it('should validate correct search parameters', () => {
-      const validData = {
-        q: 'love',
-        limit: 10
-      }
-
-      const result = searchSchema.safeParse(validData)
-      expect(result.success).toBe(true)
-    })
-
-    it('should apply default limit', () => {
-      const validData = {
-        q: 'love'
-      }
-
-      const result = searchSchema.safeParse(validData)
-      expect(result.success).toBe(true)
-      if (result.success) {
-        expect(result.data.limit).toBe(10)
-      }
-    })
-  })
-
-  describe('chapterSchema', () => {
-    it('should validate correct chapter parameters', () => {
-      const validData = {
-        book: 1,
-        chapter: 1
-      }
-
-      const result = chapterSchema.safeParse(validData)
-      expect(result.success).toBe(true)
-    })
-
-    it('should reject invalid book ID', () => {
-      const invalidData = {
-        book: 0,
-        chapter: 1
-      }
-
-      const result = chapterSchema.safeParse(invalidData)
-      expect(result.success).toBe(false)
-    })
-  })
-})