docs(paths): remove absolute path references

Why:
- exported docs should not leak local machine paths
- repository links need to remain portable across machines and remotes
- session start reminder should infer repo root instead of hardcoding a workstation path

What:
- replace absolute file links with relative repository links in docs
- replace local tool paths in dev-journal examples with portable HOME-based commands
- make session_start_reminder.py derive REPO_ROOT from __file__
- expand vibecoding retrospective with concrete environment constraints and pitfalls

Verify:
- git diff --check
- rg -n "/home/yuanzhi/|file://|/tmp/TrendRadar-upstream" . -g '!target/**' -g '!*.lock'

Author: codefromkarl

docs/benchmark-python-baseline.md

@@ -79,7 +79,7 @@ cargo bench --package trendradar-app --bench pipeline_bench
 
 Python 真实入口已经固定为：
 
-- 代码入口：`/home/yuanzhi/Develop/ai-research/TrendRadar/trendradar/__main__.py`
+- 代码入口：`<python-trendradar-repo>/trendradar/__main__.py`
 - CLI 入口：`python -m trendradar`
 
 但 Python CLI 当前没有暴露可配置的热榜 API 基址，因此本仓库内新增了一个 benchmark bridge：
@@ -93,7 +93,7 @@ Python 真实入口已经固定为：
 Python 侧当前主对比命令：
 
 ```bash
-/home/yuanzhi/Develop/ai-research/TrendRadar/.venv/bin/python \
+<python-trendradar-repo>/.venv/bin/python \
   scripts/benchmark_python_baseline.py --warmups 5 --runs 10
 ```
 

docs/deployment.md

@@ -126,7 +126,7 @@ sudo journalctl -u trendradar.service -n 50 --no-pager
 OnUnitActiveSec=30min
 ```
 
-如需修改，编辑 [trendradar.timer](/home/yuanzhi/Develop/ai-research/TrendRadar-Rust/deploy/systemd/trendradar.timer) 后重新加载：
+如需修改，编辑 [trendradar.timer](../deploy/systemd/trendradar.timer) 后重新加载：
 
 ```bash
 sudo systemctl daemon-reload

docs/dev-journal/2026-04-10-github-geo-optimization.md

@@ -76,9 +76,9 @@
 本轮实际执行：
 
 ```bash
-python3 /home/yuanzhi/.codex/skills/seo/scripts/github_readme_lint.py README.md --json
-python3 /home/yuanzhi/.codex/skills/seo/scripts/github_repo_audit.py --repo codefromkarl/TrendRadar-Rust --provider auto --json
-python3 /home/yuanzhi/.codex/skills/seo/scripts/github_community_health.py --repo codefromkarl/TrendRadar-Rust --provider auto --json
+python3 "$HOME/.codex/skills/seo/scripts/github_readme_lint.py" README.md --json
+python3 "$HOME/.codex/skills/seo/scripts/github_repo_audit.py" --repo codefromkarl/TrendRadar-Rust --provider auto --json
+python3 "$HOME/.codex/skills/seo/scripts/github_community_health.py" --repo codefromkarl/TrendRadar-Rust --provider auto --json
 cargo fmt --all --check
 just verify-basic
 ```

docs/project-closeout.md

@@ -51,7 +51,7 @@
 本轮真正影响收尾判断的三个尾项已经处理完：
 
 - `E6`：已补 Rust / Python 的真实主对比值，见 [Python 对比基线](./benchmark-python-baseline.md)
-- `O5`：已补复杂并发慢源 / 失败源组合下的多轮稳定性测试，见 [tests/system/http_resilient_recovery.rs](/home/yuanzhi/Develop/ai-research/TrendRadar-Rust/tests/system/http_resilient_recovery.rs)
+- `O5`：已补复杂并发慢源 / 失败源组合下的多轮稳定性测试，见 [tests/system/http_resilient_recovery.rs](../tests/system/http_resilient_recovery.rs)
 - `P5`：已补最小可扩展通知 sink 模型，见 [配置契约](./contracts/config.md) 与 [app 实施说明](./implementation/app.md)
 
 这些项补完后，仓库已经不再停留在“几乎收完，但还差几个关键尾巴”的状态。

docs/runtime-stability.md

@@ -26,9 +26,9 @@
 
 关键入口：
 
-- [http_resilient_recovery.rs](/home/yuanzhi/Develop/ai-research/TrendRadar-Rust/tests/system/http_resilient_recovery.rs)
-- [large_input_stability.rs](/home/yuanzhi/Develop/ai-research/TrendRadar-Rust/tests/system/large_input_stability.rs)
-- [large_output_consistency.rs](/home/yuanzhi/Develop/ai-research/TrendRadar-Rust/tests/system/large_output_consistency.rs)
+- [http_resilient_recovery.rs](../tests/system/http_resilient_recovery.rs)
+- [large_input_stability.rs](../tests/system/large_input_stability.rs)
+- [large_output_consistency.rs](../tests/system/large_output_consistency.rs)
 
 ### 3. 重复执行稳定性