feat: extract cross-pollination helpers from playwright-smart-table

[rickcedwhat-ai]

Summary

• Adds waitForCondition — generic 100ms polling predicate with configurable timeout
• Adds ElementTracker — browser-side WeakMap tracker for virtualized/recycled DOM lists (peek/commit pattern)
• Adds levenshteinDistance / stringSimilarity / findSimilar — case-weighted fuzzy string matching for "did you mean?" style errors
• Adds StabilizationStrategies (contentChanged, rowCountIncreased, networkIdle) — generalized from smart-table's version, adapted to (rows: Locator, page: Page, action) API without TableContext dependency

All four modules are zero-dependency (Playwright types only) and pass the existing 35-test suite.

Closes #32

Test plan

• pnpm run build — clean compile, no TS errors
• pnpm test — 35/35 pass

🤖 Generated with Claude Code

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📥 Commits

Reviewing files that changed from the base of the PR and between 06cf065 and 5a5b17e.

📒 Files selected for processing (5)

• src/elementTracker.ts
• src/index.ts
• src/stabilization.ts
• src/stringUtils.ts
• src/waitForCondition.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/cross-pollination-helpers

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[rickcedwhat-ai]

Closing — implementation was premature. Will revisit after design discussion.