Avoid recovered output basename collisions

[sickn33]

Summary

• disambiguate duplicate recovered basenames within each KEK group using a stable source-path hash
• write a manifest.csv mapping source paths to output paths and per-file recovery status
• save recovered files via an atomic temp-file replace

Tests

• python3 tests/test_output_paths.py
• python3 -m py_compile lockbit-rescue.py verify-recovered.py lockbit-extend.py tests/test_output_paths.py

[Copilot]

Pull request overview

This PR updates the recovery output layout to prevent recovered files from overwriting each other when multiple encrypted inputs share the same basename within a KEK group, and adds a CSV manifest to map each source file to its recovered output and status.

Changes:

• Add stable basename disambiguation per KEK group by suffixing duplicates with a source-path hash.
• Write manifest.csv containing source/output/status (and related metadata) for each attempted recovery.
• Save recovered outputs via an atomic temp-file + os.replace() flow, and add tests for output-path stability + manifest header behavior.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 5 comments.

File	Description
lockbit-rescue.py	Adds collision-safe output naming, manifest writing, and atomic save behavior; updates resume/group logic to use the new output-path mapping.
README.md	Documents duplicate-basename handling and the new manifest.csv output.
tests/test_output_paths.py	Adds tests validating stable unique output paths for duplicates and manifest header/rows.

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[sickn33]

Addressed Copilot's review in 2a0bf93:

• use a short fixed-length temp filename for atomic output saves
• avoid resolving source paths when computing collision hashes, and preserve full fallback paths
• keep resume progress accounting consistent for existing outputs and oracle-copy failures
• make the tqdm test stub deterministic

Tests:

• python3 tests/test_output_paths.py
• python3 -m py_compile lockbit-rescue.py verify-recovered.py lockbit-extend.py tests/test_output_paths.py