Mount the harvest driver as the atlas harvest verb

[jpr5]

Summary

• Relocates the harvest driver from scripts/atlas-harvest.ts to src/atlas/harvest-cli.ts and mounts it as atlas harvest <run|artifact|sync|reindex> on the shipped atlas binary, via pre-parse raw-tail forwarding — byte-parity with the standalone CLI verified by a 22-case in-process + 15-case dist-binary battery (including leading -- separators and pre-verb flags).
• Unwinds the scripts-program special-casing that existed only because the driver lived outside src/: the two test-file excludes in tsconfig.json, the extra tsconfig.scripts.json includes, and the CI prettier glob widen are all reverted (those configs are now byte-identical to main).
• Updates the harness docs (scripts/atlas-harvest/*.md) to the atlas harvest invocation, with accuracy fixes: the source-of-truth synopsis now lists required flags and token requirements per subcommand, serverless ramp headline numbers no longer recommend the probe-abort threshold, the wx collision claim is scoped to the in-process writer (leaves get an exclusive-create instruction), and the episodic leaf invariant list now includes the confidence clamp and sensitivity floor.

Test plan

• Full suite: 5894/5894 across 322 files (vitest)
• tsc --noEmit clean on both configs
• Dist binary smoke: atlas harvest run --help, parity cases incl. harvest -- run --run-id x
• CI green on this PR

Review

7-agent CR round + behavioral fix round (leading--- forwarding parity) + 7-agent confirmation round + doc micro-fix; zero remaining actionable findings. Follow-ups deferred: formatCliError reuse in the atlas-cli MCP error paths, dynamic-import decoupling of the harvest graph from atlas search startup, unpinned CI prettier.