feat(history): add chronological runs and exact output inspection (#227)

* feat(history): add bounded chronological read projections (#209)

* fix(history): validate internal continuation positions (#209)

* feat(history): expose fenced history windows and run details (#209)

* fix(history): release retired projection connections (#209)

* feat(history): resolve reported outputs through current authorization (#209)

* fix(history): reject invalid inspection targets (#209)

* feat(history): add scoped history state and current-file adapter (#209)

* fix(history): preserve slideshow and clear stale reentry actions (#209)

* feat(history): render recorded executions and frozen run details (#209)

* fix(history): recover receipts and refresh capture evidence (#209)

* test(history): verify chronological history across restore and host modes (#209)

* fix(history): enforce chronological marker visual parity (#209)

* fix(history): resolve final chronological review findings

Address #209 recovery, bounded visit restoration, exact receipt availability, and portable regression coverage.

* test(history): repair Windows fixtures and review feedback

Address #209 and PR #227 native path, cleanup, media and review-comment expectations. Document Windows portability preflight without changing production behavior.

* ci: raise the viewerjs job budget for the larger browser suite

The cross-browser workflows suite grew from 396 to 496 tests on this
branch, which pushed the whole viewerjs job to about 25.5 minutes
against the 25 minute cap set in #181. Two exact-head runs on this
branch timed out without any test failing: run 39173019283 was killed
on test 474 of 496, and run 39175125474 printed "496 passed (12.8m)"
and was then cancelled during Playwright shutdown.

Raise only the job budget. Browser projects, workers and per-test
timeouts are unchanged. Splitting the browsers into parallel jobs is
tracked separately.

tests/browser/server.py

@@ -16,6 +16,25 @@ from PIL.PngImagePlugin import PngInfo
 
 from tests.browser.workspace_visual_fixture import seed_workspace_visual
 from tests.browser.workspace_inspector_fixture import seed_workspace_inspector
+from tests.browser.workspace_history_fixture import (
+    capture_workspace_history_zero_outputs,
+    register_workspace_history_commands,
+    seed_workspace_history,
+)
+
+CANONICAL_ROOT = Path(__file__).resolve().parents[2]
+CANONICAL_ASSETS = {
+    "/__test__/canonical/workspace": (
+        "docs/concepts/workspace/index.html",
+        "text/html",
+    ),
+    "/workspace/app.js": ("docs/concepts/workspace/app.js", "text/javascript"),
+    "/workspace/style.css": ("docs/concepts/workspace/style.css", "text/css"),
+    "/toolkit/core.js": ("web/js/shared/toolkit/core.js", "text/javascript"),
+    "/toolkit/controls.css": ("web/js/shared/toolkit/controls.css", "text/css"),
+    "/vendor/viewer.js": ("web/lib/viewerjs/viewer.min.js", "text/javascript"),
+    "/vendor/viewer.css": ("web/lib/viewerjs/viewer.min.css", "text/css"),
+}
 
 
 class TestModel:
@@ -80,6 +99,18 @@ def create_app(root: Path) -> web.Application:
     autotag.get_autotag_service = lambda: model
     api = PromptManagerAPI()
     api.add_routes(routes)
+    history_commands = register_workspace_history_commands(routes, api, root)
+
+    async def canonical_asset(request: web.Request) -> web.Response:
+        filename, content_type = CANONICAL_ASSETS[request.path]
+        return web.Response(
+            body=(CANONICAL_ROOT / filename).read_bytes(),
+            content_type=content_type,
+            headers={"Cache-Control": "no-store", "X-Content-Type-Options": "nosniff"},
+        )
+
+    for path in CANONICAL_ASSETS:
+        routes.get(path)(canonical_asset)
 
     def seed(
         extra_images: int = 0,
@@ -223,9 +254,50 @@ def create_app(root: Path) -> web.Application:
             api.db.link_image_to_prompt(video_prompt_id, str(video))
         api.invalidate_gallery_cache()
 
+    history_fixture = None
+
+    @routes.post("/__test__/history/capture-zero-outputs")
+    async def capture_history_outputs(request: web.Request) -> web.Response:
+        data = await request.json() if request.can_read_body else None
+        if (
+            not isinstance(data, dict)
+            or set(data) != {"run_id"}
+            or history_fixture is None
+            or data["run_id"] not in history_fixture["runs"].values()
+        ):
+            raise web.HTTPBadRequest()
+        captured = await api._run_in_executor(
+            capture_workspace_history_zero_outputs, api, data["run_id"]
+        )
+        return web.json_response({"success": captured})
+
     @routes.post("/__test__/reset")
     async def reset(request: web.Request) -> web.Response:
+        nonlocal history_fixture
         data = await request.json() if request.can_read_body else {}
+        if not isinstance(data, dict):
+            raise web.HTTPBadRequest()
+        chronological_history = data.get("chronological_history", False)
+        history_runs = data.get("history_runs", 0)
+        if (
+            not isinstance(chronological_history, bool)
+            or isinstance(history_runs, bool)
+            or not isinstance(history_runs, int)
+            or not 0 <= history_runs <= 1200
+            or (not chronological_history and "history_runs" in data)
+            or (
+                chronological_history
+                and set(data) - {"chronological_history", "history_runs"}
+            )
+        ):
+            raise web.HTTPBadRequest()
+        if chronological_history:
+            manifest = await api._run_in_executor(
+                lambda: seed_workspace_history(api, root, history_runs=history_runs)
+            )
+            history_fixture = manifest
+            return web.json_response({"success": True, **manifest})
+        history_commands.reset()
         workspace_visual = data.get("workspace_visual", False)
         full_inspector = data.get("full_inspector", False)
         extra = data.get("extra_images", 0)
@@ -277,15 +349,18 @@ def create_app(root: Path) -> web.Application:
         ):
             raise web.HTTPBadRequest()
         if workspace_visual:
+            history_fixture = None
             await api._run_in_executor(seed_workspace_visual, api, root)
             return web.json_response({"success": True})
         if full_inspector:
+            history_fixture = None
             await api._run_in_executor(
                 lambda: seed_workspace_inspector(
                     api, root, extra_images=extra, include_video=include_video
                 )
             )
             return web.json_response({"success": True})
+        history_fixture = None
         await api._run_in_executor(
             seed,
             extra,