- Implemented in-house, zero-dependency utility modules in `pi-utils` covering DOM manipulation, markdown parsing, templating, browser automation helpers, and terminal buffers.
- Migrated packages across the repository to consume the new internal utilities and `omptype` schema validators instead of external dependencies.
- Removed multiple external runtime and development dependencies including Zod, Marked, LRU cache, Turndown, and Puppeteer browser packages.
- Added `ensureSharedBrowser` and shared browser acquisition to manage project-shared broker-owned Chromium instances.
- Implemented concurrent duplicate daemon start prevention and single-flight `pendingOpens` deduplication.
- Updated browser handle disposal to disconnect from shared daemons rather than closing them.
- Updated browser documentation and launch specifications to support shared and local headless runs.
Attaching to a long-running browser (a signed-in profile, an Electron app kept
open for a session) meant repeating app.cdp_url on every browser call, and any
call that omitted it silently launched a fresh headless Chromium instead.
browser.cdpUrl supplies that endpoint once. It is a default rather than an
override: app.cdp_url and app.path still win, and an unset or blank value leaves
cmux and headless resolution exactly as before.
- Remove the per-call `save` option from `tab.screenshot()` to simplify usage.
- Update `tab.screenshot()` to return the saved file path as a promise string.
- Configure screenshot persistence to use daemon path or custom `browser.screenshotDir`.
- Add comprehensive tests verifying temp path return and custom directory saving.
- Implemented `waitForSelector` and `waitForNavigation` methods in the browser tool API.
- Introduced per-operation fail-fast budget management with dynamic timeout clamping.
- Added validation for selector engines to reject unsupported Playwright-only platform features.
- Standardized error handling to provide descriptive, named timeouts for stalled browser operations.
- Implemented `tab.ariaSnapshot()` to capture and represent page structures as ARIA-tree YAML.
- Introduced `tab.ref()` and ref-based selector parsing to enable precise element interaction via unique ARIA identifiers.
- Integrated automated script bundling for cross-environment evaluation of ARIA snapshot logic.
- Updated browser action methods to resolve and target elements using ARIA-ref handles.
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