feat: implémentation et QA ticket99 - agent model configuration v2

- backend A-C: VO Codex/Claude, renderers/projecteurs modèle, SecretRef/env, catalogues/use cases/Tauri commands
- frontend D: profils Codex/Claude provider->model->secret, validations, conservation SecretRef
- fix: app-tauri embedded_server isolant IDEA_WEB_ROOT

QA: backend 57/57 tests, frontend 74/74 tests OK

frontend/src/adapters/mock/index.ts

@@ -9,6 +9,8 @@ import type {
   AgentDrift,
   AppExitWorkGuardState,
   AgentProfile,
+  ClaudeProviderCatalogEntry,
+  CodexProviderCatalogEntry,
   DiagnosticWarning,
   DomainEvent,
   EmbedderEngines,
@@ -103,6 +105,8 @@ import type {
   ReattachResult,
   RemoteGateway,
   ReviewPluginPackageInput,
+  SaveClaudeProviderProfileInput,
+  SaveCodexProviderProfileInput,
   SaveOpenCodeProviderProfileInput,
   SkillGateway,
   StoppedLiveAgent,
@@ -1250,6 +1254,7 @@ export const MOCK_REFERENCE_PROFILES: AgentProfile[] = [
     contextInjection: { strategy: "conventionFile", target: "CLAUDE.md" },
     detect: "claude --version",
     cwdTemplate: "{projectRoot}",
+    structuredAdapter: "claude",
   },
   {
     id: "mock-codex",
@@ -1259,6 +1264,7 @@ export const MOCK_REFERENCE_PROFILES: AgentProfile[] = [
     contextInjection: { strategy: "conventionFile", target: "AGENTS.md" },
     detect: "codex --version",
     cwdTemplate: "{projectRoot}",
+    structuredAdapter: "codex",
   },
   {
     id: "mock-opencode",
@@ -1291,6 +1297,25 @@ const MOCK_OPENCODE_PROVIDERS: OpenCodeProviderCatalogEntry[] = [
   },
 ];
 
+/** Static mock catalogue mirroring the backend Codex provider list. */
+const MOCK_CODEX_PROVIDERS: CodexProviderCatalogEntry[] = [
+  {
+    providerId: "openai",
+    displayName: "OpenAI",
+    models: ["gpt-5", "gpt-5-mini", "gpt-5-codex", "o3"],
+    customSupported: true,
+  },
+];
+
+/** Static mock catalogue mirroring the backend Claude provider list. */
+const MOCK_CLAUDE_PROVIDERS: ClaudeProviderCatalogEntry[] = [
+  {
+    providerId: "anthropic",
+    displayName: "Anthropic",
+    models: ["claude-sonnet-4-5", "claude-opus-4-1", "claude-haiku-3-5"],
+  },
+];
+
 /**
  * In-memory profiles gateway. Tracks configured profiles and a first-run flag so
  * the wizard can be driven and tested fully offline. By default it reports the
@@ -1386,6 +1411,53 @@ export class MockProfileGateway implements ProfileGateway {
     this.configured = true;
     return structuredClone(saved);
   }
+
+  async listCodexProviders(): Promise<CodexProviderCatalogEntry[]> {
+    return structuredClone(MOCK_CODEX_PROVIDERS);
+  }
+
+  async saveCodexProviderProfile(
+    input: SaveCodexProviderProfileInput,
+  ): Promise<AgentProfile> {
+    const saved: AgentProfile = {
+      ...structuredClone(input.profile),
+      codexProvider: {
+        providerId: input.providerId,
+        model: input.model,
+        apiKeyRef:
+          input.profile.codexProvider?.apiKeyRef ?? `mock-secret-${input.profile.id}`,
+        custom: input.custom,
+      },
+    };
+    const i = this.profiles.findIndex((p) => p.id === saved.id);
+    if (i >= 0) this.profiles[i] = saved;
+    else this.profiles.push(saved);
+    this.configured = true;
+    return structuredClone(saved);
+  }
+
+  async listClaudeProviders(): Promise<ClaudeProviderCatalogEntry[]> {
+    return structuredClone(MOCK_CLAUDE_PROVIDERS);
+  }
+
+  async saveClaudeProviderProfile(
+    input: SaveClaudeProviderProfileInput,
+  ): Promise<AgentProfile> {
+    const saved: AgentProfile = {
+      ...structuredClone(input.profile),
+      claudeProvider: {
+        providerId: input.providerId,
+        model: input.model,
+        apiKeyRef:
+          input.profile.claudeProvider?.apiKeyRef ?? `mock-secret-${input.profile.id}`,
+      },
+    };
+    const i = this.profiles.findIndex((p) => p.id === saved.id);
+    if (i >= 0) this.profiles[i] = saved;
+    else this.profiles.push(saved);
+    this.configured = true;
+    return structuredClone(saved);
+  }
 }
 
 /**