Compact project new CLI wiring

[Deicyde]

Follow-up to #96. A keyboard interrupt during project new now raises ProjectCreateError("project-create-interrupted", ...) into the existing ProjectCreateError handler. Before, it duplicated that handler's JSON and stderr printing inline. The handler now returns 130 for that code and 1 otherwise. create.py never raises that code itself, so no other path changes exit status.

The change also puts the project import and the project new help strings on one line where they fit in 120 columns, as the rest of __main__.py does. It drops a duplicated scripts/ reference loop in tests/test_skill_examples.py.

Tests: ruff check is clean. On dd90820: tests/test_cli.py 5 passed, tests/test_project_create.py -k "cli or interrupt" 25 passed, tests/test_skill_examples.py 23 passed.

[Deicyde]

Exact-head review at 3a99e52e: KeyboardInterrupt keeps the same human/JSON ProjectCreateError payload and only project-create-interrupted maps to exit 130; all other creation errors remain exit 1. The removed skill scan was byte-for-byte duplicate. Focused tests (32), diff check, and all GitHub checks pass. No blocker remains.

[Deicyde]

Independent review of 3a99e52. Verdict: mergeable. This agrees with the exact-head review above; the points below were checked separately.

• Interrupt path. raise ProjectCreateError("project-create-interrupted", message) from None (autoform_cli/__main__.py:518) sits inside the outer try, and nothing between it and except ProjectCreateError at :543 catches it. That handler prints the same JSON to stdout, or error[code]: message to stderr, as the inline block it replaces. from None only changes __cause__ and __context__, which nothing prints.
• Exit codes. :548 returns 130 only for project-create-interrupted; every other creation error still returns 1. tests/test_project_create.py:2215-2234 (human and --json) and :2264-2267 pin the 130 and both outputs.
• Removed test loop. At dd90820, tests/test_skill_examples.py:194-199 repeated :188-193 line for line, so no coverage is lost.
• Joined lines. The longest is 119 characters, under the line-length = 120 in pyproject.toml:50, and the joins stay within the project new wiring and its import.
• Main. Merges cleanly with 71b251c. __main__.py is unchanged on main since dd90820, and main's only change to tests/test_skill_examples.py is Document Autoform agent development practices #144's routing tests, which auto-merge.

No golf left. Not run locally; CI is green at 3a99e52.

Posted by PR swarm: PR Swarm Lead