Prepare CodeClone 2.0.1 stability release

[orenlab]

Summary

Prepare the CodeClone 2.0.1 stability release with focused fixes for dead-code precision, release documentation, CI/action alignment, and CLI polish.

Changes

• Add framework-aware dead-code reachability improvements to reduce false positives for common Python patterns.
• Add a one-time interactive CLI migration note for projects moving from the 2.0.0 line to 2.0.1+.
• Refresh the CLI banner wording to match CodeClone’s current positioning as a structural review layer.
• Align release docs, changelog date, action metadata, base image, and lockfile state for the 2.0.1 release branch.

Validation

• uv lock --check
• uv run pytest --cov=codeclone --cov-report=term-missing --cov-fail-under=99 --cov-report=xml
• uv run pre-commit run --all-files
• uv run --with mkdocs --with mkdocs-material mkdocs build --strict

[github-actions]

CodeClone Review

✅ Passed · Health 90/100 (A) · Baseline ok · Cache miss · CodeClone 2.0.1

Review snapshot

Area	Signal	Review note
Clones	0 total, 0 new, 0 known	no new clone debt reported
Quality	CC max 20, CBO max 8, LCOM4 max 3, overloaded 11	structural metric snapshot
Dependencies	avg 4.0, p95 12, max 16, cycles 0	acyclic
Coverage Join	not joined	no coverage.xml facts in this report
Security Surfaces	59 surfaces, 4 categories, 29 production	report-only boundary inventory
API Surface	2239 symbols, 217 modules	0 breaking, 0 added
Dead code	0 high-confidence, 1 suppressed	clean

Review focus

• Treat 29 production security surface(s) as review-first boundary code when touched.
• Review 11 overloaded module candidate(s) when they intersect this PR.

_{Security Surfaces are report-only capability inventory, not vulnerability claims. Generated by CodeClone}