v0.14.0

Changelog

• 445ff5f build: add compile-only build-fast target
• 77a13d2 build: emit all binaries into gitignored bin/
• 43ccac8 cli: emit api-diff --json through the shared envelope
• 15628f8 cli: emit blast-radius --json through the shared envelope
• b2a95e6 cli: emit callgraph --json through the shared envelope
• e4686c2 cli: emit context --json through the shared envelope
• fc1cffc cli: emit history --json through the shared envelope
• a512eaf cli: emit mutation --json through the shared envelope
• 95355f0 cli: emit skeleton --json through the shared envelope
• 550335a cli: emit txn --json through the shared envelope
• 18ca37d cli: pin the envelope contract; migrate test-affected
• 82e21bd harness: resolve seven test-only-live findings, shrink baseline 89->81
• f469c19 lint: add hard-to-maintain and redundant-nil-guard rules
• 3a6f44d lint: clear CI ratchet growth vs main
• dfeb9f4 lint: clear hard-to-maintain findings via helper extraction
• acedd8e lint: drop stale coverage.out baseline entry
• 923398d lint: fix file-target verify gate; surface stale coverage profile
• 7b96b75 lint: keep gate builds from littering package dirs with binaries