FE-709: Continuous workspace shell

[kostandinang]

Summary

Replaces the per-phase interview center pane with a continuous workspace shell while preserving phase routes, existing interview-controller behavior, and the durable workflow model. The interview still behaves as one four-phase conversation, but the UI now has a stable single-pane host for future chat runtime and reconciliation work.

Changes

• Render realized workflow phases in one cumulative ContinuousWorkspaceView scroll surface.
• Keep only the current reachable phase interactive while showing closed and future-ready context in place.
• Add useContinuousWorkspaceController to own the single chat runtime, lifecycle handling, auto phase intents, and per-phase section projection.
• Share controller helpers through -interview-controller-core.ts so the continuous workspace and legacy interview controller use the same projection logic.
• Add workspace focus state and sidebar scroll-spy highlighting for phase sections, with route-active fallback for graph/export surfaces.
• Stabilize continuous workspace section projection during live updates to avoid unnecessary observer churn.
• Restore submitted-phase live tool running indicators so pre-stream tool activity remains visible.
• Update controller and view tests for the continuous workspace, scroll focus, live tool details, and submitted pre-stream behavior.

Testing

• npm run verify

[kostandinang]

• FE-710: Chat runtime — unified surface with threads as primitive #138
• FE-709: Continuous workspace shell #134 👈 (View in Graphite)
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[cursor]

PR Summary

Low Risk
Documentation-only changes that adjust agent workflows and planning vocabulary; low implementation risk, with the main risk being process confusion if the new terminology is applied inconsistently.

Overview
Adds new skill docs (d3k, ln-diagnose, ln-disambiguate, ln-prototype) and updates multiple existing ln-* skills to clarify routing, testing/TDD discipline, and when to use ln-design vs ln-refactor.

Standardizes planning vocabulary and templates around frontier items (PLAN/Linear/branch unit) vs slices (scoped execution), including a new mature memory/PLAN.md shape (Context + Sequencing + stable Frontier Definitions) and corresponding updates across ln-plan, ln-scope, ln-build, ln-oracles, ln-spec, ln-sync, and AGENTS.md.

Refines process docs: planning-pr is narrowed to an explicit advisory (no automatic branching), HANDOFF.md is added as a volatile transfer snapshot, and several design/archive docs are annotated/retitled and cross-links are updated (including additional sync-archive entries in docs/archive/PLAN_HISTORY.md).

^{Reviewed by Cursor Bugbot for commit d1072bb. Bugbot is set up for automated code reviews on this repo. Configure here.}

[augmentcode]

🤖 Augment PR Summary

Summary: This PR implements a “continuous workspace” interview shell so the center pane behaves like one cumulative conversation across phases instead of separate per-phase views.

Changes:

• Replaces per-phase InterviewView routes with ContinuousWorkspaceView (single scroll surface that stacks realized phase sections).
• Adds useContinuousWorkspaceController to own the spec-scoped useChat runtime, lifecycle wiring, auto phase-intent submission, and section projection.
• Introduces WorkspaceFocusProvider + IntersectionObserver scroll-spy to track focusedPhase and drive sidebar highlighting.
• Extracts shared pure helpers + bottom-artifact enrichment into -interview-controller-core.ts so both controllers reuse the same logic.
• Updates router tests to reflect the new workspace view mount/render semantics.
• Updates planning docs (memory/PLAN.md, docs/archive/PLAN_HISTORY.md) to reflect the runtime umbrella and FE-709 completion.

Technical Notes: Keeps InterviewView/useInterviewController intact for the existing large test suite while switching the live phase routes to the new continuous workspace host.

_{🤖 Was this summary useful? React with 👍 or 👎}

[augmentcode]

Review completed. 1 suggestion posted.

Comment augment review to trigger a new review at any time.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit d1072bb. Configure here.}

[cursor]

Volatile handoff file committed despite its own retirement rule

Low Severity

The newly added HANDOFF.md states in its own retirement rule: "Delete this file after PR is submitted." Since this PR is the submission itself, including the file means it will persist in the repository after merge. The ln-sync skill and ln-build skill both instruct agents to "remove stale HANDOFF.md files instead of preserving them as archive breadcrumbs" and to delete when "unfinished volatile transfer state" no longer exists. This file is volatile session-transfer state that has served its purpose and contradicts its own lifecycle contract by being included in the final PR.

 

^{Reviewed by Cursor Bugbot for commit d1072bb. Configure here.}