Phase 2: Roles and Channels Modules

[johansabent]

Agent Task Prompt: Phase 2 - Roles and Channels Modules

Goal: Implement modules and MCP tools for reading and modifying Discord roles and channels.

Acceptance Criteria:

• Implement src/modules/roles.ts exposing listRoles, createRole, deleteRole, updateRole, assignRole, and removeRole using getDiscordClient().
• Implement src/tools/roles.tools.ts registering the corresponding MCP tools (e.g., roles.list_roles, roles.create_role) with inputs and outputs validated via zod. Default guild_id to config.DEFAULT_GUILD_ID if absent.
• Implement src/modules/channels.ts exposing listChannels, listCategories, and serverStructure (returns the category tree mapped with channels).
• Implement src/tools/channels.tools.ts registering channels.list_channels, channels.list_categories, and channels.server_structure with explicit input and output schemas.
• Any module or tool accepting guild_id must fall back to config.DEFAULT_GUILD_ID when it is omitted.
• Before closing the issue, run local verification (npm run build and npm run lint), commit the issue-scoped changes, and ensure the GitHub Actions checks pass if the branch is pushed.

Technical Context:

• Validate parameters strictly. Provide descriptive error handling if permissions fail or entities are not found.
• Use guild.roles.fetch() to ensure data is fresh.