feat: finalise ticket99 - implémentation agent model configuration v2

- agent/lifecycle.rs: lifecycle management per profile
- agent/provider_catalogue.rs: provider registration with model support
- agent/usecases.rs: usecases for profile-based agent invocation
- agent/mod.rs: expose agent capabilities via AgentManager
- backend/dto.rs: AgentModelConfig, AgentProviderConfig DTOs
- domain/profile.rs: extend Profile avec agent capabilities
- domain/permission.rs: permission checks pour agent access
- infrastructure/assistant/mod.rs: agent integration
- infrastructure/permission/{claude,codex}.rs: permission handlers
- web-server/lib.rs: agent endpoints
- commands.rs: agent commands
- frontend/adapters/{http,profile,mock,domain}.ts: adapters
- frontend/first-run/FirstRunWizard.{test.tsx,tsx}: first-run flow

frontend/src/domain/index.ts

@@ -1068,36 +1068,6 @@ export interface OpenCodeProviderConfig {
   custom?: CustomProviderConfig;
 }
 
-/**
- * Configuration for a Codex profile backed by a provider/model pair (ticket
- * #99). `apiKeyRef` is an opaque backend SecretStore reference; the literal
- * secret is only sent through {@link ProfileGateway.saveCodexProviderProfile}.
- */
-export interface CodexProviderConfig {
-  /** Provider id used as Codex's `model_provider` (e.g. `"openai"`). */
-  providerId: string;
-  /** Model name written into Codex's isolated config. */
-  model: string;
-  /** Opaque reference to the sealed API key; never the literal key. */
-  apiKeyRef: string;
-  /** Optional custom OpenAI-compatible endpoint for this Codex provider. */
-  custom?: CodexCustomProviderConfig;
-}
-
-/**
- * Configuration for a Claude profile backed by a provider/model pair (ticket
- * #99). `apiKeyRef` is an opaque backend SecretStore reference; the literal
- * secret is only sent through {@link ProfileGateway.saveClaudeProviderProfile}.
- */
-export interface ClaudeProviderConfig {
-  /** Provider id. V1 backend exposes `"anthropic"`. */
-  providerId: string;
-  /** Model name written into Claude's isolated settings. */
-  model: string;
-  /** Opaque reference to the sealed API key; never the literal key. */
-  apiKeyRef: string;
-}
-
 /**
  * Config for a custom OpenCode provider (mirror of the backend
  * `CustomProviderConfig`, camelCase wire format), carried by
@@ -1112,18 +1082,6 @@ export interface CustomProviderConfig {
   displayName?: string;
 }
 
-/**
- * Config for a custom Codex provider (mirror of the backend
- * `CodexCustomProviderConfig`, camelCase wire format), carried by
- * {@link CodexProviderConfig.custom}.
- */
-export interface CodexCustomProviderConfig {
-  /** Base URL of the OpenAI-compatible endpoint. */
-  baseUrl: string;
-  /** Optional display label written into Codex's provider table. */
-  displayName?: string;
-}
-
 /**
  * One entry of the static OpenCode cloud-provider catalogue (mirror of the
  * backend `OpenCodeProviderDto`), returned by
@@ -1138,28 +1096,6 @@ export interface OpenCodeProviderCatalogEntry {
   models: string[];
 }
 
-/** One entry of the static Codex provider catalogue (ticket #99). */
-export interface CodexProviderCatalogEntry {
-  /** Provider id used as Codex's `model_provider`. */
-  providerId: string;
-  /** Human-readable label for the picker UI. */
-  displayName: string;
-  /** Model names this provider serves, offered for selection. */
-  models: string[];
-  /** Whether this provider supports a custom endpoint in the UI. */
-  customSupported: boolean;
-}
-
-/** One entry of the static Claude provider catalogue (ticket #99). */
-export interface ClaudeProviderCatalogEntry {
-  /** Provider id. V1 backend exposes `"anthropic"`. */
-  providerId: string;
-  /** Human-readable label for the picker UI. */
-  displayName: string;
-  /** Model names this provider serves, offered for selection. */
-  models: string[];
-}
-
 /**
  * A declarative AI-CLI profile (mirror of the backend `AgentProfile`). `id` is a
  * UUID string; `detect` is the optional detection command line.
@@ -1196,10 +1132,11 @@ export interface AgentProfile {
    * both.
    */
   opencodeProvider?: OpenCodeProviderConfig;
-  /** Codex provider/model config (ticket #99). */
-  codexProvider?: CodexProviderConfig;
-  /** Claude provider/model config (ticket #99). */
-  claudeProvider?: ClaudeProviderConfig;
+  /**
+   * Optional direct CLI model setting for Codex/Claude. `undefined` keeps the
+   * CLI's own default. OpenCode keeps its dedicated provider/local model fields.
+   */
+  model?: string;
 }
 
 /** Availability of a candidate profile after detection (mirror of the DTO). */