优化: ProjectDetail多工程列表 + ProjectCard list padding + provider usage诊断

ProjectDetail 概览加工程列表(moduleApi.listProjectModules 显所有 module 名/路径,只读,多工程可见,不只项目级 bind_directory)

ProjectCard list padding 1×(原 0.7× 紧凑文字贴边,panel 14/16px)

openai_helpers apply_openai_sse usage 诊断 tracing(确认 deepseek 报 cache/usage 否,定位 completion 0)

i18n projectDetail.modulesLabel zh/en

crates/df-ai/src/openai_helpers.rs

@@ -208,6 +208,14 @@ pub(crate) fn apply_openai_sse(data: &str, usage_accum: &mut Option<TokenUsage>)
             }
             // 提取 usage（带 include_usage 时末段 chunk 携带，覆盖累积）
             if let Some(u) = chunk.usage {
+                tracing::info!(
+                    prompt = u.prompt_tokens,
+                    completion = u.completion_tokens,
+                    cache_hit = u.prompt_cache_hit_tokens,
+                    cache_miss = u.prompt_cache_miss_tokens,
+                    reasoning = u.reasoning_tokens,
+                    "[OpenAI] 末 chunk usage 解析(deepseek 等报 cache)"
+                );
                 *usage_accum = Some(TokenUsage {
                     prompt_tokens: u.prompt_tokens,
                     completion_tokens: u.completion_tokens,