docs: 更新 README feature 表 + 升级指南 + 示例注释 + roadmap 同步

- README 添加 feature 组合表 + 模块级 features 清单 + 升级指南
- 18 个 example 顶部添加 Required features 注释
- roadmap.md 和 roadmap-v0.3.2.md 同步 Phase 26-27 完成状态
- cargo fmt 全量格式化(修复预存格式问题,CI format job 可通过)
This commit is contained in:
徐涛
2026-07-19 08:18:04 +08:00
parent bc4eac72e1
commit 5baa170508
53 changed files with 1112 additions and 615 deletions
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//! Required features: cargo run --example simple_visit --features "llm,provider-openai,tracing-init"
use std::env;
use agcore::init_tracing;