此 PR 完成了 r2cn 测试任务 #177，列出分支时过滤出包含/不包含指定提交的分支

[chimes-of-freedom]

功能描述

参照 Git 为 libra 的 branch 命令实现 --contains / --no-contains（别名 --with / --without）参数，可在列出分支时过滤出包含/不包含指定提交的分支。

1. 对于 --contains 指定的提交，要求过滤出其 tip commit 的祖先提交包含该提交的分支；
2. 对于 --no-contians 制定的提交，要求过滤出其 tip commit 的祖先提交不包含该提交的分支；
3. 对于指定多个 --contains 和 --no-contians 的情形，要求过滤出 至少满足一个 --contains 条件且满足所有 --no-contains 条件 的分支。

实现方案

以下实现均在 src/command/branch.rs 中定义。

1. 定义 --contains 和 --no-contains 参数。
2. 修改 list_branches() 函数签名，增加 commits_contains 和 commits_no_contains 参数，同步修改所有调用处代码。
3. 重构 list_branches() 中处理 本地分支和远程分支的部分，使之仅仅是得到 local_branches 和 remote_branches 两个 Vec，并在函数末尾增加打印非空 Vec 的逻辑。
4. 定义 commit_contains()，检查给定的 branch 是否包含给定 commits 中至少一个：遍历 commits，对于每一个目标提交，对 branch 的 tip commit 进行 BFS 以确认 branch 是否包含目标提交，一旦找到一个目标提交被 branch 包含则返回 true，否则返回 false（包括 commits 为空时）。
5. 定义 filter_branches() 实现对给定 branches 的过滤：便利 branches，对于每个 branch 调用 2 次 commit_contains() 分别检查是否包含 --contains 和 --no-contains 指定的一系列提交之一，进而判断是否保留该分支，最后通过 retain() 过滤 branches。
6. 在 list_branches() 得到 local_branches 和 remote_branches 后、打印分支集之前插入对 filter_branches() 的调用，对本地分支集和远程分支集分别进行过滤。

测试方案

以下测试均在 tests/command/branch_test.rs::test_branch_contains_commit_filter() 中定义。

1. 创建如下的测试提交图：

master:  base ← m1 ← m2
           ↖
dev:        d1 ← d2

2. 设计测试用例，覆盖如下参数组合：
   1. 单一选项，每个选项只指定 1 次；
   2. 组合选项，每个选项只指定 1 次；
   3. 组合选项，每个选项指定多次。
3. 对于每个测试用例，直接调用 filter_branches() 以便检查测试结果。

测试结果

• 通过 cargo clippy --all-targets --all-features -- -D warnings 检查。
• 通过 cargo +nightly fmt --all --check 检查。
• 通过 cargo test 检查。
• cargo build / cargo buckal build / buck2 run //:libra 成功。

[Copilot]

Pull request overview

This PR extends Libra’s branch command with Git-like branch filtering capabilities by adding --contains / --no-contains (aliases --with / --without), enabling listing branches based on commit reachability from each branch tip.

Changes:

• Add CLI flags and listing logic to filter local/remote branches by whether they contain specified commits.
• Introduce reusable filtering helpers (filter_branches, commit_contains) and add an integration test covering key flag combinations.
• Update multiple tests/call sites for the new BranchArgs fields and the new list_branches signature; refresh README and Cargo.lock.

Reviewed changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
src/command/branch.rs	Adds --contains/--no-contains args, updates listing flow, and implements commit-reachability filtering.
tests/command/branch_test.rs	Adds a comprehensive integration test for the new branch filtering behavior.
tests/command/checkout_test.rs	Updates call site for the new list_branches(mode, contains, no_contains) signature.
tests/command/reset_test.rs	Extends BranchArgs construction with new contains/no_contains fields.
tests/command/mod.rs	Re-exports filter_branches for integration tests.
tests/command/show_test.rs	Minor CLI invocation refactor (args([...])).
tests/command/remote_test.rs	Minor string formatting simplification in branch lookup.
tests/command/init_test.rs	Simplifies error mapping using io::Error::other.
tests/command/index_pack_test.rs	Minor iterator/refactor improvements in parsing helpers and path reads.
src/internal/ai/agent/chat.rs	Simplifies test-side pattern matching for user message handling.
README.md	Marks --contains as supported in Libra in the compatibility table.
Cargo.lock	Large dependency lockfile refresh accompanying the change.

[genedna]

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[Copilot]

Pull request overview

Copilot reviewed 11 out of 12 changed files in this pull request and generated 2 comments.

[Copilot]

Pull request overview

Copilot reviewed 11 out of 12 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 6 out of 7 changed files in this pull request and generated 4 comments.

[Copilot]

Pull request overview

Copilot reviewed 6 out of 7 changed files in this pull request and generated 4 comments.

[chimes-of-freedom]

@genedna 您好，GitHub 的自动检查似乎有问题，buck2 build //:libra 无法通过，但我在本地能成功编译。麻烦您手动编译一下。谢谢！