Use reqwest 0.12 with rustls-tls and add timeouts

Also improve review prompt with line calculation instructions, switch
feedback to French, and enable reasoning for OpenRouter.

src/bot.rs

@@ -69,10 +69,11 @@ pub struct Bot {
 impl Bot {
     pub fn new(config: EnvConfig) -> anyhow::Result<Self> {
         Ok(Self {
-            gitea_api: GiteaAPI::new(&config.gitea_url, &config.gitea_token),
+            gitea_api: GiteaAPI::new(&config.gitea_url, &config.gitea_token, config.gitea_timeout),
             open_router_client: OpenRouterClient::new(
                 &config.open_router_api_key,
                 &config.open_router_model,
+                config.open_router_timeout,
             )?,
             config,
         })
@@ -116,7 +117,7 @@ impl Bot {
                 .download_git_diff(&review_payload.pull_request.diff_url)
                 .await?;
 
-            let bot_request = &&REVIEW_PROMPT
+            let bot_request = REVIEW_PROMPT
                 .replace("{subject}", &review_payload.pull_request.title)
                 .replace("{comment}", &review_payload.comment.body)
                 .replace("{diff}", &git_diff);