refactor(doctor): redesign with 3-tier output and consolidated checks

Consolidate 16 separate checks into 5 (system, config, providers, tools, models).
Add 3-tier formatting: default (problems-only), --status (dashboard), --verbose (deep diagnostics).
Read actual loaded plugin version from opencode cache directory.
Check environment variables for provider authentication.

src/cli/doctor/constants.ts

@@ -18,50 +18,31 @@ export const STATUS_COLORS = {
 } as const
 
 export const CHECK_IDS = {
-  OPENCODE_INSTALLATION: "opencode-installation",
-  PLUGIN_REGISTRATION: "plugin-registration",
-  CONFIG_VALIDATION: "config-validation",
-  MODEL_RESOLUTION: "model-resolution",
-  AUTH_ANTHROPIC: "auth-anthropic",
-  AUTH_OPENAI: "auth-openai",
-  AUTH_GOOGLE: "auth-google",
-  DEP_AST_GREP_CLI: "dep-ast-grep-cli",
-  DEP_AST_GREP_NAPI: "dep-ast-grep-napi",
-  DEP_COMMENT_CHECKER: "dep-comment-checker",
-  GH_CLI: "gh-cli",
-  LSP_SERVERS: "lsp-servers",
-  MCP_BUILTIN: "mcp-builtin",
-  MCP_USER: "mcp-user",
-  MCP_OAUTH_TOKENS: "mcp-oauth-tokens",
-  VERSION_STATUS: "version-status",
+  SYSTEM: "system",
+  CONFIG: "config",
+  PROVIDERS: "providers",
+  TOOLS: "tools",
+  MODELS: "models",
 } as const
 
 export const CHECK_NAMES: Record<string, string> = {
-  [CHECK_IDS.OPENCODE_INSTALLATION]: "OpenCode Installation",
-  [CHECK_IDS.PLUGIN_REGISTRATION]: "Plugin Registration",
-  [CHECK_IDS.CONFIG_VALIDATION]: "Configuration Validity",
-  [CHECK_IDS.MODEL_RESOLUTION]: "Model Resolution",
-  [CHECK_IDS.AUTH_ANTHROPIC]: "Anthropic (Claude) Auth",
-  [CHECK_IDS.AUTH_OPENAI]: "OpenAI (ChatGPT) Auth",
-  [CHECK_IDS.AUTH_GOOGLE]: "Google (Gemini) Auth",
-  [CHECK_IDS.DEP_AST_GREP_CLI]: "AST-Grep CLI",
-  [CHECK_IDS.DEP_AST_GREP_NAPI]: "AST-Grep NAPI",
-  [CHECK_IDS.DEP_COMMENT_CHECKER]: "Comment Checker",
-  [CHECK_IDS.GH_CLI]: "GitHub CLI",
-  [CHECK_IDS.LSP_SERVERS]: "LSP Servers",
-  [CHECK_IDS.MCP_BUILTIN]: "Built-in MCP Servers",
-  [CHECK_IDS.MCP_USER]: "User MCP Configuration",
-  [CHECK_IDS.MCP_OAUTH_TOKENS]: "MCP OAuth Tokens",
-  [CHECK_IDS.VERSION_STATUS]: "Version Status",
+  [CHECK_IDS.SYSTEM]: "System",
+  [CHECK_IDS.CONFIG]: "Configuration",
+  [CHECK_IDS.PROVIDERS]: "Providers",
+  [CHECK_IDS.TOOLS]: "Tools",
+  [CHECK_IDS.MODELS]: "Models",
 } as const
 
-export const CATEGORY_NAMES: Record<string, string> = {
-  installation: "Installation",
-  configuration: "Configuration",
-  authentication: "Authentication",
-  dependencies: "Dependencies",
-  tools: "Tools & Servers",
-  updates: "Updates",
+export const AUTH_ENV_VARS: Record<string, string[]> = {
+  anthropic: ["ANTHROPIC_API_KEY"],
+  openai: ["OPENAI_API_KEY"],
+  google: ["GOOGLE_API_KEY", "GEMINI_API_KEY"],
+} as const
+
+export const AUTH_PLUGINS: Record<string, { plugin: string; name: string }> = {
+  anthropic: { plugin: "builtin", name: "Anthropic" },
+  openai: { plugin: "opencode-openai-codex-auth", name: "OpenAI" },
+  google: { plugin: "opencode-antigravity-auth", name: "Google" },
 } as const
 
 export const EXIT_CODES = {