docs: sync README files with latest repo state

[yyiilluu]

Summary

• Updates OSS code-map READMEs for the latest source-scoped search behavior.
• Documents that profile/user-playbook/agent-playbook search paths carry source filters and how agent-playbook source matching is resolved.
• Follows the parent repository policy in how_to_write_readme.md: concise, navigation-focused README changes only.

Repositories/submodules reviewed

• ReflexioAI/reflexio (open_source/reflexio submodule)
• Parent ReflexioAI/reflexio-enterprise reviewed separately in this scheduled run.

README files updated

• reflexio/README.md
• reflexio/server/README.md
• reflexio/server/services/README.md

Validation

• git diff --check
• python /root/.hermes/skills/github/scheduled-code-map-readme-maintenance/scripts/readme_link_check.py /root/reflexio-enterprise/open_source/reflexio reflexio/README.md reflexio/server/README.md reflexio/server/services/README.md

Notes/Risks

• README-only change.
• open_source/reflexio/README.md is user-facing/public and was intentionally left untouched.

Summary by CodeRabbit

• Documentation
  • Documented source-filter support for profile, user-playbook, and agent-playbook searches.
  • Clarified that agent-playbook results match playbooks linked to user playbooks from the requested source.
  • Updated unified search documentation to describe source-filter forwarding.
  • Clarified Unicode substring search behavior for queries containing non-ASCII letters or numbers.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 8ef32708-2f0e-44b3-bd4f-9f5a234dfeb4

📥 Commits

Reviewing files that changed from the base of the PR and between 898de7a and af097d4.

📒 Files selected for processing (3)

• reflexio/README.md
• reflexio/server/README.md
• reflexio/server/services/README.md

Included review availability: 3 reviews are currently available. Your included PR review attempts over the past 7 days set your current allowance at 4 reviews per hour.

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📝 Walkthrough

Walkthrough

The README files document source-filter support for profile and playbook searches. Service documentation also updates the eligibility wording for bounded Unicode substring candidates.

Changes

Search documentation

Layer / File(s)	Summary
Source-filter search documentation reflexio/README.md, reflexio/server/README.md, reflexio/server/services/README.md	The documentation describes source filters for profile, user-playbook, and agent-playbook searches. Agent-playbook searches match linked user playbooks from the exact requested source.
Unicode search eligibility wording reflexio/server/services/README.md	The storage documentation states that bounded Unicode substring candidates require at least one non-ASCII alphanumeric character.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to af097

This PR makes localized README updates describing existing source-scoped search behavior without changing runtime or product behavior; no actionable merge-blocking risk remains after normal checks and review.

Possibly related PRs

• ReflexioAI/reflexio#454: Implements the source-filter functionality documented by this PR.

Suggested reviewers: guangyu-reflexio, yilu331

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies a documentation change that synchronizes README files with the repository state.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/sync-readmes-20260820

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