Fix to_gpt comma punctuation spacing

[akmhatey-ai]

Fixes #26.

Summary:

• Replace the alternation with a character class so to_gpt removes spaces before bare commas as intended.
• Add regression coverage for spaces before !, ,, :, and ?.

Reproduction:

• Old regex: "hello , world".replace(/ (\?|!|\|,|:)/g, "$1") returns hello , world.
• Fixed regex: "hello , world".replace(/ ([?!,:])/g, "$1") returns hello, world.
• Current helper check: to_gpt("Wait ! Look , here : why ?") returns Wait! Look, here: why?.

Validation:

• npm ci passed; npm reports existing dependency audit findings.
• npx jest --config jest.config.ts --no-color --ci test/to_gpt.test.ts --coverage=false passed.
• npx eslint src/to_gpt.ts test/to_gpt.test.ts --config eslint.config.mjs passed.
• npx tsc --noEmit passed.
• git diff --check passed.
• git diff -- src/to_gpt.ts test/to_gpt.test.ts | gitleaks stdin --no-banner --redact reported no leaks.

Limitations:

• Full npx jest --config jest.config.ts --no-color --ci currently fails in existing baza/server tests that call live Zerocracy endpoints and now receive token/CSRF HTTP errors. The changed to_gpt test file passes.

[GHX5T-SOL]

Verified the to_gpt comma-spacing fix for #26. The regex now removes spaces before ?, !, ,, and : without the unreachable |, alternation branch.

Validation:

• npm ci -> completed; npm reports existing audit findings, and this PR does not change dependencies
• npx jest --config jest.config.ts --no-color --ci test/to_gpt.test.ts --coverage=false -> 1 suite passed, 2 tests passed
• npx eslint src/to_gpt.ts test/to_gpt.test.ts --config eslint.config.mjs -> passed
• npx tsc --noEmit -> passed
• git diff --check origin/master...HEAD -> passed
• git diff origin/master...HEAD | gitleaks stdin --no-banner --redact --exit-code 1 -> no leaks found

Live pre-review state: open, non-draft, mergeable/UNSTABLE only because no GitHub checks are reported, no existing comments/reviews. Same-scope open PR search for to_gpt comma punctuation spacing returned only this PR. I did not run the full live endpoint suite.

[kreinba]

Fix is correct: the character class [?!,:] replaces the broken \?|!|\|,|: alternation, whose third branch was the literal two-char sequence |, rather than a bare , — exactly the defect named in #26. Diff stays scoped to src/to_gpt.ts plus the regression in test/to_gpt.test.ts, which covers each of the four punctuation marks. Verified locally on head 447d947: npx jest test/to_gpt.test.ts is green, npx tsc --noEmit and npx eslint src/to_gpt.ts test/to_gpt.test.ts are clean. No CI checks have been reported on the branch.

[0crat]

@kreinba Thanks for the review! You've earned +6 points for this: +18 as a basis; -8 for absolutely no comments posted; -4 for too few (6) hits-of-code. Your running score is +1458; don't forget to check your Zerocracy account too).

[akmhatey-ai]

Merged current master into this branch and pushed head b75561a; GitHub now reports the PR as CLEAN and MERGEABLE.

Validation:

• npm ci -> completed. npm reports existing audit/deprecation findings; this PR diff still only touches src/to_gpt.ts and test/to_gpt.test.ts.
• npm exec jest -- --config jest.config.ts --no-color --ci test/to_gpt.test.ts --coverage=false -> 1 suite, 2 tests passed.
• npm exec jest -- --config jest.config.ts --no-color --ci --coverage=false -> 6 suites, 22 tests passed.
• npm exec eslint -- src/to_gpt.ts test/to_gpt.test.ts --config eslint.config.mjs -> passed.
• npm exec eslint -- . --config eslint.config.mjs -> passed.
• Makefile-equivalent TypeScript compile for non-test sources -> passed.
• git diff --check origin/master...HEAD -> clean.
• git merge-tree --write-tree origin/master HEAD -> c87ba11ef632e5231e256adeed81d301fc097e19.
• Diff-scoped gitleaks stdin --no-banner --redact --exit-code 1 -> no leaks found.

Hosted checks on b75561a pass: actionlint, checkmake, copyrights, eslint, make, markdown-lint, pdd, reuse, typos, xcop, and yamllint.