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Repo hardening: fix install instructions, dead imports, hygiene#1

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cognis-audit/repo-hardening
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Repo hardening: fix install instructions, dead imports, hygiene#1
cognis-digital wants to merge 5 commits into
mainfrom
cognis-audit/repo-hardening

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@cognis-digital cognis-digital commented Jun 12, 2026

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This PR applies a few small, mechanically-verified hardening fixes found by an automated audit of the Cognis suite:

  • fix 2 broken pip install line(s) in README (package is not on PyPI; use the working git+https install)
  • remove 5 unused import(s) (ruff F401/F811)

Each change is deterministic; all touched Python files were confirmed to still compile (py_compile) before this PR was opened.

- fix 2 broken `pip install` line(s) in README (package is not on PyPI; use the working git+https install)
- remove 5 unused import(s) (ruff F401/F811)

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Thanks for your first PR! 🚀 A maintainer will review under the collaboration-pull model (see CONTRIBUTING.md).

@cognis-digital cognis-digital force-pushed the cognis-audit/repo-hardening branch from 95d06af to e688148 Compare June 12, 2026 21:46
cognis-digital and others added 4 commits June 13, 2026 03:02
…-06-13)

- README install instructions point at the working git+https path
- ran the actual audit: 13 tests passed, 0 parse errors, CLI C:\Python314\python.exe: No module named https
- embedded results in README ## Verification and AUDIT.md
- Insert "What is this?" section in README with non-technical description of the tool
- Add/refresh cross-platform Install section in README (pipx/uv/pip/source)
- Write install.sh (Linux/macOS) and install.ps1 (Windows) one-liner installers
- Add layman.md source file for the plain-language description
- core.py: guard parse_observations against None input; fix TypeError bug
  in build_graph when the same downstream source appears with duplicate
  explicit via observations (datetime vs float comparison in explicit dict)
- core.py: deduplicate explicit edges so each downstream source gets at
  most one explicit inbound edge
- cli.py: catch PermissionError, IsADirectoryError, and generic OSError
  from file reads; reject empty / whitespace-only stdin with a clear error
- integrations/webhook.py: split compound import (ruff E401); validate
  URL scheme; reject empty payload before attempting POST
- tests/test_hardening.py: 19 new tests covering all new error/edge paths
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