Add AWS Bedrock auth mode with per-project configuration

Introduces a third auth mode alongside Login and API Key, allowing
projects to authenticate Claude Code via AWS Bedrock. Includes support
for static credentials, profile-based, and bearer-token auth methods
with full UI controls. Also adds a URL accumulator to the terminal to
reassemble long OAuth URLs split across hard newlines, and installs
the AWS CLI v2 in the container image.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/src-tauri/src/models/project.rs

@@ -8,6 +8,7 @@ pub struct Project {
     pub container_id: Option<String>,
     pub status: ProjectStatus,
     pub auth_mode: AuthMode,
+    pub bedrock_config: Option<BedrockConfig>,
     pub allow_docker_access: bool,
     pub ssh_key_path: Option<String>,
     pub git_token: Option<String>,
@@ -30,11 +31,13 @@ pub enum ProjectStatus {
 /// How the project authenticates with Claude.
 /// - `Login`: User runs `claude login` inside the container (OAuth, persisted via config volume)
 /// - `ApiKey`: Uses the API key stored in the OS keychain
+/// - `Bedrock`: Uses AWS Bedrock with per-project AWS credentials
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
 #[serde(rename_all = "snake_case")]
 pub enum AuthMode {
     Login,
     ApiKey,
+    Bedrock,
 }
 
 impl Default for AuthMode {
@@ -43,6 +46,35 @@ impl Default for AuthMode {
     }
 }
 
+/// How Bedrock authenticates with AWS.
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "snake_case")]
+pub enum BedrockAuthMethod {
+    StaticCredentials,
+    Profile,
+    BearerToken,
+}
+
+impl Default for BedrockAuthMethod {
+    fn default() -> Self {
+        Self::StaticCredentials
+    }
+}
+
+/// AWS Bedrock configuration for a project.
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct BedrockConfig {
+    pub auth_method: BedrockAuthMethod,
+    pub aws_region: String,
+    pub aws_access_key_id: Option<String>,
+    pub aws_secret_access_key: Option<String>,
+    pub aws_session_token: Option<String>,
+    pub aws_profile: Option<String>,
+    pub aws_bearer_token: Option<String>,
+    pub model_id: Option<String>,
+    pub disable_prompt_caching: bool,
+}
+
 impl Project {
     pub fn new(name: String, path: String) -> Self {
         let now = chrono::Utc::now().to_rfc3339();
@@ -53,6 +85,7 @@ impl Project {
             container_id: None,
             status: ProjectStatus::Stopped,
             auth_mode: AuthMode::default(),
+            bedrock_config: None,
             allow_docker_access: false,
             ssh_key_path: None,
             git_token: None,