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

crates/backend/src/dto.rs

@@ -999,10 +999,13 @@ use application::{
     CloneOpenCodeProfileFromSeedInput, CloneOpenCodeProfileFromSeedOutput, ConfigureProfilesInput,
     ConfigureProfilesOutput, DeleteProfileInput, DetectProfilesInput, DetectProfilesOutput,
     FirstRunStateOutput, ListProfilesOutput, ProfileAvailability, ReferenceProfilesOutput,
-    SaveOpenCodeProviderProfileInput, SaveOpenCodeProviderProfileOutput, SaveProfileInput,
-    SaveProfileOutput,
+    SaveClaudeProviderProfileInput, SaveClaudeProviderProfileOutput, SaveCodexProviderProfileInput,
+    SaveCodexProviderProfileOutput, SaveOpenCodeProviderProfileInput,
+    SaveOpenCodeProviderProfileOutput, SaveProfileInput, SaveProfileOutput,
+};
+use domain::profile::{
+    AgentProfile, CodexCustomProviderConfig, CustomProviderConfig, OpenCodeConfig,
 };
-use domain::profile::{AgentProfile, CustomProviderConfig, OpenCodeConfig};
 use domain::ProfileId;
 
 /// A profile crossing the wire. [`AgentProfile`] already serialises camelCase
@@ -1069,6 +1072,68 @@ impl From<application::OpenCodeProviderCatalogEntry> for OpenCodeProviderDto {
     }
 }
 
+/// One entry of the static Codex provider catalogue (ticket #99).
+#[derive(Debug, Clone, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CodexProviderDto {
+    pub provider_id: String,
+    pub display_name: String,
+    pub models: Vec<String>,
+    pub custom_supported: bool,
+}
+
+impl From<application::CodexProviderCatalogEntry> for CodexProviderDto {
+    fn from(entry: application::CodexProviderCatalogEntry) -> Self {
+        Self {
+            provider_id: entry.provider_id,
+            display_name: entry.display_name,
+            models: entry.models,
+            custom_supported: entry.custom_supported,
+        }
+    }
+}
+
+/// A list of Codex provider catalogue entries.
+#[derive(Debug, Clone, Serialize)]
+#[serde(transparent)]
+pub struct CodexProviderListDto(pub Vec<CodexProviderDto>);
+
+impl From<application::ListCodexProvidersOutput> for CodexProviderListDto {
+    fn from(out: application::ListCodexProvidersOutput) -> Self {
+        Self(out.providers.into_iter().map(Into::into).collect())
+    }
+}
+
+/// One entry of the static Claude provider catalogue (ticket #99).
+#[derive(Debug, Clone, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ClaudeProviderDto {
+    pub provider_id: String,
+    pub display_name: String,
+    pub models: Vec<String>,
+}
+
+impl From<application::ClaudeProviderCatalogEntry> for ClaudeProviderDto {
+    fn from(entry: application::ClaudeProviderCatalogEntry) -> Self {
+        Self {
+            provider_id: entry.provider_id,
+            display_name: entry.display_name,
+            models: entry.models,
+        }
+    }
+}
+
+/// A list of Claude provider catalogue entries.
+#[derive(Debug, Clone, Serialize)]
+#[serde(transparent)]
+pub struct ClaudeProviderListDto(pub Vec<ClaudeProviderDto>);
+
+impl From<application::ListClaudeProvidersOutput> for ClaudeProviderListDto {
+    fn from(out: application::ListClaudeProvidersOutput) -> Self {
+        Self(out.providers.into_iter().map(Into::into).collect())
+    }
+}
+
 /// A list of OpenCode cloud-provider catalogue entries (camelCase array on the
 /// wire).
 #[derive(Debug, Clone, Serialize)]
@@ -1181,6 +1246,63 @@ impl From<SaveOpenCodeProviderProfileOutput> for ProfileDto {
     }
 }
 
+/// Request DTO for `save_codex_provider_profile` (ticket #99).
+#[derive(Debug, Clone, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct SaveCodexProviderProfileRequestDto {
+    pub profile: AgentProfile,
+    pub provider_id: String,
+    pub model: String,
+    pub api_key: String,
+    #[serde(default)]
+    pub custom: Option<CodexCustomProviderConfig>,
+}
+
+impl From<SaveCodexProviderProfileRequestDto> for SaveCodexProviderProfileInput {
+    fn from(dto: SaveCodexProviderProfileRequestDto) -> Self {
+        Self {
+            profile: dto.profile,
+            provider_id: dto.provider_id,
+            model: dto.model,
+            api_key: dto.api_key,
+            custom: dto.custom,
+        }
+    }
+}
+
+impl From<SaveCodexProviderProfileOutput> for ProfileDto {
+    fn from(out: SaveCodexProviderProfileOutput) -> Self {
+        Self(out.profile)
+    }
+}
+
+/// Request DTO for `save_claude_provider_profile` (ticket #99).
+#[derive(Debug, Clone, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct SaveClaudeProviderProfileRequestDto {
+    pub profile: AgentProfile,
+    pub provider_id: String,
+    pub model: String,
+    pub api_key: String,
+}
+
+impl From<SaveClaudeProviderProfileRequestDto> for SaveClaudeProviderProfileInput {
+    fn from(dto: SaveClaudeProviderProfileRequestDto) -> Self {
+        Self {
+            profile: dto.profile,
+            provider_id: dto.provider_id,
+            model: dto.model,
+            api_key: dto.api_key,
+        }
+    }
+}
+
+impl From<SaveClaudeProviderProfileOutput> for ProfileDto {
+    fn from(out: SaveClaudeProviderProfileOutput) -> Self {
+        Self(out.profile)
+    }
+}
+
 /// Request DTO for `clone_opencode_profile_from_seed`.
 #[derive(Debug, Clone, Deserialize)]
 #[serde(rename_all = "camelCase")]