fix(plan): support self-targeting nightlight's own TASKS.md

[c0d3ster]

Summary

• plan.sh already resolved absolute paths that were real directories, bypassing PROJECT_REPOS_DIR — but pointing it at nightlight's own repo root still passed that same path to --add-dir, redundant with (and potentially conflicting with) the identical cwd.
• Detect when the resolved REPO matches the current working directory (nightlight planning itself, per the existing root TASKS.md) and invoke /plan-tasks with no --add-dir in that case, since cwd files are already readable without it.
• External repos (by name via PROJECT_REPOS_DIR, or by absolute path) are unaffected — they still get --add-dir.

Test plan

• bash -n plan.sh — syntax check
• Manual dry run with a stubbed claude binary: plan.sh ., plan.sh <absolute nightlight path>, and plan.sh other-repo (via PROJECT_REPOS_DIR) all resolved to the expected invocation
• Real run: pnpm plan . from the nightlight repo, confirm /plan-tasks proposes a breakdown against nightlight's own TASKS.md

🤖 Generated with Claude Code

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 5c91d3a3-8b85-4522-ac52-723b828bd940

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[c0d3ster]

Closing — turns out no fix was needed. I assumed pointing --add-dir at the same directory as cwd would be redundant/problematic, but I tested it directly (claude -p ... --add-dir $(pwd)) and it works fine. The original plan.sh already supports self-targeting as-is: pnpm plan . or pnpm plan /absolute/path/to/nightlight both resolve correctly through the existing -d check and pass straight through to --add-dir with no issue. Reverted the unnecessary change.