feat: add Conductor plugin for Context-Driven Development

Add comprehensive Conductor plugin implementing Context-Driven Development
methodology with tracks, specs, and phased implementation plans.

Components:
- 5 commands: setup, new-track, implement, status, revert
- 1 agent: conductor-validator
- 3 skills: context-driven-development, track-management, workflow-patterns
- 18 templates for project artifacts

Documentation updates:
- README.md: Updated counts (68 plugins, 100 agents, 110 skills, 76 tools)
- docs/plugins.md: Added Conductor to Workflows section
- docs/agents.md: Added conductor-validator agent
- docs/agent-skills.md: Added Conductor skills section

Also includes Prettier formatting across all project files.

plugins/backend-development/skills/api-design-principles/references/graphql-schema-design.md

@@ -3,6 +3,7 @@
 ## Schema Organization
 
 ### Modular Schema Structure
+
 ```graphql
 # user.graphql
 type User {
@@ -37,17 +38,19 @@ extend type Query {
 ## Type Design Patterns
 
 ### 1. Non-Null Types
+
 ```graphql
 type User {
-  id: ID!              # Always required
-  email: String!       # Required
-  phone: String        # Optional (nullable)
-  posts: [Post!]!      # Non-null array of non-null posts
-  tags: [String!]      # Nullable array of non-null strings
+  id: ID! # Always required
+  email: String! # Required
+  phone: String # Optional (nullable)
+  posts: [Post!]! # Non-null array of non-null posts
+  tags: [String!] # Nullable array of non-null strings
 }
 ```
 
 ### 2. Interfaces for Polymorphism
+
 ```graphql
 interface Node {
   id: ID!
@@ -72,6 +75,7 @@ type Query {
 ```
 
 ### 3. Unions for Heterogeneous Results
+
 ```graphql
 union SearchResult = User | Post | Comment
 
@@ -92,13 +96,16 @@ type Query {
     }
     ... on Comment {
       text
-      author { name }
+      author {
+        name
+      }
     }
   }
 }
 ```
 
 ### 4. Input Types
+
 ```graphql
 input CreateUserInput {
   email: String!
@@ -124,6 +131,7 @@ input UpdateUserInput {
 ## Pagination Patterns
 
 ### Relay Cursor Pagination (Recommended)
+
 ```graphql
 type UserConnection {
   edges: [UserEdge!]!
@@ -144,12 +152,7 @@ type PageInfo {
 }
 
 type Query {
-  users(
-    first: Int
-    after: String
-    last: Int
-    before: String
-  ): UserConnection!
+  users(first: Int, after: String, last: Int, before: String): UserConnection!
 }
 
 # Usage
@@ -171,6 +174,7 @@ type Query {
 ```
 
 ### Offset Pagination (Simpler)
+
 ```graphql
 type UserList {
   items: [User!]!
@@ -187,6 +191,7 @@ type Query {
 ## Mutation Design Patterns
 
 ### 1. Input/Payload Pattern
+
 ```graphql
 input CreatePostInput {
   title: String!
@@ -212,6 +217,7 @@ type Mutation {
 ```
 
 ### 2. Optimistic Response Support
+
 ```graphql
 type UpdateUserPayload {
   user: User
@@ -231,6 +237,7 @@ type Mutation {
 ```
 
 ### 3. Batch Mutations
+
 ```graphql
 input BatchCreateUserInput {
   users: [CreateUserInput!]!
@@ -256,6 +263,7 @@ type Mutation {
 ## Field Design
 
 ### Arguments and Filtering
+
 ```graphql
 type Query {
   posts(
@@ -296,20 +304,20 @@ enum OrderDirection {
 ```
 
 ### Computed Fields
+
 ```graphql
 type User {
   firstName: String!
   lastName: String!
-  fullName: String!  # Computed in resolver
-
+  fullName: String! # Computed in resolver
   posts: [Post!]!
-  postCount: Int!    # Computed, doesn't load all posts
+  postCount: Int! # Computed, doesn't load all posts
 }
 
 type Post {
   likeCount: Int!
   commentCount: Int!
-  isLikedByViewer: Boolean!  # Context-dependent
+  isLikedByViewer: Boolean! # Context-dependent
 }
 ```
 
@@ -366,6 +374,7 @@ type Product {
 ## Directives
 
 ### Built-in Directives
+
 ```graphql
 type User {
   name: String!
@@ -388,6 +397,7 @@ query GetUser($isOwner: Boolean!) {
 ```
 
 ### Custom Directives
+
 ```graphql
 directive @auth(requires: Role = USER) on FIELD_DEFINITION
 
@@ -406,6 +416,7 @@ type Mutation {
 ## Error Handling
 
 ### Union Error Pattern
+
 ```graphql
 type User {
   id: ID!
@@ -452,6 +463,7 @@ type Query {
 ```
 
 ### Errors in Payload
+
 ```graphql
 type CreateUserPayload {
   user: User
@@ -476,6 +488,7 @@ enum ErrorCode {
 ## N+1 Query Problem Solutions
 
 ### DataLoader Pattern
+
 ```python
 from aiodataloader import DataLoader
 
@@ -493,6 +506,7 @@ async def resolve_posts(user, info):
 ```
 
 ### Query Depth Limiting
+
 ```python
 from graphql import GraphQLError
 
@@ -507,6 +521,7 @@ def depth_limit_validator(max_depth: int):
 ```
 
 ### Query Complexity Analysis
+
 ```python
 def complexity_limit_validator(max_complexity: int):
     def calculate_complexity(node):
@@ -522,6 +537,7 @@ def complexity_limit_validator(max_complexity: int):
 ## Schema Versioning
 
 ### Field Deprecation
+
 ```graphql
 type User {
   name: String! @deprecated(reason: "Use firstName and lastName")
@@ -531,6 +547,7 @@ type User {
 ```
 
 ### Schema Evolution
+
 ```graphql
 # v1 - Initial
 type User {