pi-chrome: remove obsolete REBUILD-NOTES.md

Internal scratch notes from an earlier rebuild; no external references.
docs/, CHANGELOG.md, CONTRIBUTING.md, and README.md cover the same
ground for the current shape of the package.

1 files changed, 0 insertions, 185 deletions

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-# pi-chrome 0.7.0 → 0.8.0 rebuild
-
-Scoped to Tier 1 (bugs + diagnostics), Tier 2 (surface gaps), Tier 5.1 (version
-drift), and Tier 6 (primer) from the design plan. Tier 3 (CDP backend), Tier 4
-(multi-session reliability), and Tier 5.2/5.3 (auto-reload + Web Store) are
-deferred.
-
-## What changed
-
-### T1.1 — `chrome_evaluate` returning `null` (root cause fixed)
-
-`page.evaluate` no longer goes through the `executeInTab` helper-source
-re-eval pipeline. A dedicated `evaluateInTab` path compiles the expression via
-`new Function(...)` directly in MAIN world, with a syntax-error fallback that
-re-compiles in statement-mode so multi-statement bodies still work. Special
-return values (`undefined`, errors, symbols, bigints, functions) are surfaced
-via a tagged envelope so the Node side can return them faithfully.
-
-Verified live:
-- `chrome_evaluate("1+1")` → `2`
-- `chrome_evaluate("Promise.resolve(99)")` → `99`
-- `chrome_evaluate("(()=>{throw new Error('x')})()")` → throws `Error: x`
-- `chrome_evaluate("document.body.innerHTML = '<...>'; return 'ok'")` → `"ok"`
-
-### T1.2 — Truthful click/type/fill results
-
-Every action handler now returns `isTrusted: false`,
-`defaultPrevented`, `elementVisible`, `occludedBy`, `valueMatches`, and
-`pageMutated`. The Node side formats those into the tool result text so the
-agent can read failure cause from a single response.
-
-Verified live:
-- `chrome_click(occluded-button)` → `"Clicked el-3 — pageMutated=false; occluded by <div#overlay>"`
-- `chrome_click(working-button)` → `"Clicked el-1"` (silent on success)
-
-### T1.3 — `/chrome-doctor` extended
-
-The command now probes:
-- Local bridge mode + URL
-- Companion extension version (with mismatch warning vs `PI_CHROME_VERSION`)
-- `chrome_evaluate("1+1") === 2` in the active tab
-- MAIN-world helper injection via `page.probe`, including `navigator.webdriver` fingerprint
-- CDP availability at `127.0.0.1:9222` (informational; not used yet)
-
-### T1.4 — Misleading params removed/implemented
-
-- Dropped `chrome_evaluate.returnByValue` (was ignored).
-- Implemented `chrome_screenshot.fullPage` via tile stitching (see T2.2).
-
-### T1.5 — Autoplay-gate heuristic
-
-`clickPage` checks whether the clicked element's label looks media-related
-(`/^(play|start|begin|next|continue|unmute)/`) AND the page has paused
-`<audio>`/`<video>`. If both, the result includes an `autoplayHint` that surfaces
-to the agent: "synthetic click may not start media".
-
-Verified live: clicking `<button aria-label="Play">` with a paused `<audio>`
-returns `autoplay-gated affordance — synthetic click may not start media`.
-
-### T2.1 — New input tools
-
-- `chrome_hover(uid|selector|x,y)` — dispatches pointerover/mouseover/pointerenter/mouseenter/pointermove/mousemove.
-- `chrome_drag(from*, to*, steps?)` — pointerdown at A, N pointermoves, pointerup at B. Note in tool description that HTML5 `DataTransfer` is NOT synthesized so native drag-and-drop targets may not respond.
-- `chrome_upload_file(uid|selector, paths[])` — reads files from disk, populates `<input type=file>` via `DataTransfer`, dispatches input+change.
-
-Verified live (via direct bridge HTTP since the running pi session was loaded
-before these tools were registered):
-- hover → `defaultPrevented=false`
-- drag from src to dst → `pointerdown` on src and `pointerup` on dst fired; result `pageMutated=true`
-- upload with base64 of `hello world` → input.files has 1 file, name and size match
-
-### T2.2 — Full-page screenshots
-
-`chrome_screenshot({fullPage:true})` now records page dimensions, scrolls
-through the page in viewport-sized increments, captures one tile per scroll
-position via `chrome.tabs.captureVisibleTab`, restores scrollY, and returns an
-array of `{y, dataUrl}`. The Node side writes each tile to disk with a
-`-tileN.png` suffix and a `.json` manifest listing dimensions and tile y
-offsets. (Cross-platform PNG stitching would need an image library; the
-manifest format lets the caller stitch with `sips`, `montage`, `pillow`, etc.)
-
-Verified live: Wikipedia article → 2 tiles, dimensions captured (`width: 1263, height: 919, dpr: 2`).
-
-### T2.3 — `chrome_navigate.initScript`
-
-Added optional `initScript` parameter on `chrome_navigate`. The script is run
-in MAIN world at `webNavigation.onCommitted` of the next navigation in that
-tab, before page scripts execute. Requires the new `webNavigation`
-permission (added to manifest).
-
-Verified live: navigated to `https://example.com` with
-`initScript: "window.__PI_INIT_FIRED__ = Date.now()"`. After load, the global
-was set ~3.5s before `Date.now()` — confirming it fired at document_start, not
-post-load.
-
-### T2.5 — Snapshot filters + extra signals
-
-`chrome_snapshot` accepts:
-- `containingText` — case-insensitive substring filter on the element label
-- `roleFilter` — exact match on `role` attribute OR tag name
-- `nearUid` — sort elements by distance to a previously snapshotted element
-
-Each element now includes:
-- `inert: true` when inside an `[inert]` ancestor
-- `pointerEvents` from computed style
-- `occluded: {tag, id, className}` if `document.elementFromPoint(center)` returns a different element (and not a descendant/ancestor)
-
-Verified live:
-- `containingText:"hidden"` returned only the matching button
-- `roleFilter:"button"` returned only buttons
-- `nearUid:el-anchor` correctly ordered anchor → near → far by pixel distance
-- Occluded button (covered by full-viewport `div#overlay`) reported `occluded: {tag:"div", id:"overlay"}`
-
-### T5.1 — Version drift warning
-
-`/chrome-doctor` already flags version drift between the loaded extension and
-`PI_CHROME_VERSION`. Per-tool-call drift warnings deferred to a future pass
-(needs every chrome_* response to include extension version, which costs an
-extra wire round trip or piggyback header). Bumped version to **0.8.0**.
-
-### T6 — Primer rewritten
-
-The `before_agent_start` primer now spells out:
-- All input is synthetic (`isTrusted=false`)
-- Audio/clipboard/file-picker gates won't work
-- Tool results include `pageMutated`, `defaultPrevented`, `elementVisible`, `occludedBy`, `valueMatches` and what to do with them
-- `chrome_evaluate` returning null means the expression evaluated to null in the page
-- `chrome_navigate.initScript` is available
-- `/chrome-doctor` for capability check
-
-### Other touch-ups
-
-- `chrome_navigate` timeout now adds 2s slack on top of `timeoutMs` to allow the wire round trip.
-- Snapshot's candidate query now includes `[role=menuitem]`, `[role=tab]`, `[role=checkbox]`.
-- `page.waitFor` `expression` mode no longer uses indirect `eval` (uses `Function` constructor for CSP-safe evaluation).
-
-## Files touched
-
-- `extensions/chrome-profile-bridge/index.ts` — bump version, primer, doctor probes, truthful tool result text, new tool registrations, full-page screenshot stitching.
-- `extensions/chrome-profile-bridge/browser-extension/service_worker.js` — rewritten evaluate path, snapshot filters/flags, click/type/fill instrumentation, hover/drag/upload/probe handlers, full-page screenshot tile plan, initScript dispatcher.
-- `extensions/chrome-profile-bridge/browser-extension/manifest.json` — bump version, add `webNavigation` permission.
-- `package.json` — bump version.
-
-## What's deferred (Tier 3 / 4 / 5.x)
-
-- **CDP backend** (`chrome_trusted_*`): not implemented. Requires `puppeteer-core` dep and reconciling CDP target IDs with extension tab IDs. `/chrome-doctor` reports whether `127.0.0.1:9222` is reachable so a future pass can light this up.
-- **Multi-session handover / tab leasing**: not changed.
-- **Extension auto-reload on version drift / Web Store distribution**: not changed.
-
-## To unblock the next pi session
-
-The currently-running pi session has the **old** `index.ts` registered (Pi loads
-extensions at startup). To get the new tool surface (`chrome_hover`,
-`chrome_drag`, `chrome_upload_file`, new `chrome_doctor`, new primer, new
-truthful click results):
-
-1. **Restart this pi session.** (The workspace symlink + global install are
-   both already updated to 0.8.0.)
-2. The Chrome extension at `chrome://extensions` is **already reloaded** to
-   0.8.0 (you did that during this session).
-3. Run `/chrome-doctor` in the new session — expect 5 green checks.
-
-## Acceptance test results
-
-| Test | Result |
-|------|--------|
-| `chrome_evaluate("1+1")` returns `2` | ✓ |
-| `chrome_evaluate(promise)` resolves | ✓ |
-| `chrome_evaluate` statement-mode fallback | ✓ |
-| `chrome_evaluate` rethrows errors | ✓ |
-| `chrome_evaluate(undefined)` doesn't crash | ✓ |
-| `chrome_click` reports `pageMutated=false; occluded by` for covered buttons | ✓ |
-| `chrome_click` clean success has no warning suffix | ✓ |
-| `chrome_click` autoplay heuristic fires on `<button aria-label=Play>` w/ paused audio | ✓ |
-| `chrome_snapshot.containingText` filters correctly | ✓ |
-| `chrome_snapshot.roleFilter` filters correctly | ✓ |
-| `chrome_snapshot.nearUid` sorts by distance | ✓ |
-| `chrome_snapshot` reports `occluded` and `inert` and `pointerEvents` | ✓ |
-| `page.hover` dispatches | ✓ |
-| `page.drag` produces real pointerdown/up events on src/dst | ✓ |
-| `page.upload` populates input.files with correct name/size | ✓ |
-| `page.navigate` with `initScript` runs at document_start | ✓ |
-| `page.screenshot` `fullPage` produces correct tile count | ✓ |
-| `page.probe` returns MAIN-world arithmetic and webdriver flag | ✓ |
-| CDP 9222 probe reports correctly when not reachable | ✓ |