docs(web): archive mission board action scope sprint

docs/implplan/SPRINT_20260307_015_FE_mission_board_environment_action_scope.md

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-# Sprint 20260307-015 - FE Mission Board Environment Action Scope
-
-## Topic & Scope
-- Repair mission-board environment actions so they pass canonical environment and region scope into downstream topology and findings pages.
-- Replace synthetic dashboard-only environment IDs in action links with route/query shapes the real pages actually understand.
-- Add focused Angular coverage for the board action targets, then replay the affected actions with live Playwright from the authenticated mission board.
-- Working directory: `src/Web/StellaOps.Web`.
-- Expected evidence: focused Angular tests, live Playwright action checks on `https://stella-ops.local/mission-control/board`, and sprint execution log updates.
-
-## Dependencies & Concurrency
-- Depends on the earlier mission-board route fixes plus the release-health shared environment work (`SPRINT_20260307_012` and `SPRINT_20260307_013`) because the target topology/findings surfaces already expect canonical environment scope.
-- Safe parallelism: stay inside `src/Web/StellaOps.Web` plus sprint updates; do not touch unrelated navigation/settings/sidebar work already in progress from other agents.
-- Scope is limited to mission-board environment action routing, not a full dashboard data-model rewrite.
-
-## Documentation Prerequisites
-- `src/Web/StellaOps.Web/AGENTS.md`
-- `src/Web/StellaOps.Web/src/app/features/dashboard-v3/dashboard-v3.component.ts`
-- `src/Web/StellaOps.Web/src/app/features/topology/environment-posture-page.component.ts`
-- `src/Web/StellaOps.Web/src/app/core/context/platform-context.store.ts`
-
-## Delivery Tracker
-
-### FE-DASH-001 - Reproduce mission-board environment action scope loss
-Status: DONE
-Dependency: none
-Owners: QA
-Task description:
-- Replay mission-board actions from the live authenticated shell with Playwright.
-- Confirm whether environment-specific actions preserve usable scope in downstream pages.
-
-Completion criteria:
-- [x] Live Playwright captures concrete mission-board action targets.
-- [x] The broken action is reduced to a specific route/query mismatch.
-
-### FE-DASH-002 - Replace synthetic environment action IDs with canonical scope
-Status: DONE
-Dependency: FE-DASH-001
-Owners: Developer
-Task description:
-- Update the mission-board environment card/table model so action links use canonical environment IDs plus region scope instead of composite placeholder IDs.
-- Preserve current board rendering while making downstream routes receive valid scope values.
-
-Completion criteria:
-- [x] Environment card `Detail` routes target the canonical topology posture path for the selected environment.
-- [x] Environment card `Findings` routes preserve valid region/environment scope instead of `env=<synthetic-id>`.
-- [x] Risk-table environment actions preserve the same canonical scope.
-
-### FE-DASH-003 - Add focused Angular coverage for board action targets
-Status: DONE
-Dependency: FE-DASH-002
-Owners: Test Automation
-Task description:
-- Add focused tests around the mission-board action helpers or rendered links.
-- Verify the tests assert concrete route/query outputs for at least one environment card and one risk-table row.
-
-Completion criteria:
-- [x] Focused Angular tests prove the board emits canonical topology/findings targets.
-- [x] Tests fail before the fix and pass after it.
-
-### FE-DASH-004 - Replay the affected mission-board actions live
-Status: DONE
-Dependency: FE-DASH-003
-Owners: QA
-Task description:
-- Re-run the mission-board environment actions with live Playwright after the Web bundle is rebuilt.
-- Confirm the downstream pages load with the intended environment scope instead of dropping to all-environment views.
-
-Completion criteria:
-- [x] Live Playwright confirms the selected environment `Detail` action lands on the correct topology posture route.
-- [x] Live Playwright confirms the selected environment `Findings` action preserves environment/region scope on the target page.
-
-## Execution Log
-| Date (UTC) | Update | Owner |
-| --- | --- | --- |
-| 2026-03-07 | Sprint created after live Playwright on `/mission-control/board` showed mission-board environment actions using synthetic IDs such as `env=dev-eu-west`, causing the downstream findings page to fall back to `All regions / All environments`. | QA |
-| 2026-03-07 | Rebound `DashboardV3Component` environment actions to canonical region/environment scope from the live Platform context store and added focused coverage in `src/app/core/testing/dashboard-v3.component.spec.ts`; `npx ng test --watch=false --include src/app/core/testing/dashboard-v3.component.spec.ts` passed. | Developer |
-| 2026-03-07 | Replayed the first mission-board environment card `Detail` and `Findings` actions plus the first risk-table `Open` action with live Playwright. The targets now preserve `regions=<region>&environments=<environment>` and the downstream pages render the expected scoped context (for example `US East / Development` and `US East / Staging`). | QA |
-
-## Decisions & Risks
-- Decision: treat the defect as a board action-contract problem rather than patching the findings page to understand synthetic dashboard IDs, because the board is the component inventing the invalid token.
-- Decision: source mission-board action identities from `PlatformContextStore.environments()` so downstream routes follow the same canonical environment catalog the rest of the shell uses.
-- Risk: `DashboardV3Component` still uses placeholder data, so the fix must stay scoped to action semantics and avoid broadening into a data-source rewrite during this iteration.
-
-## Next Checkpoints
-- 2026-03-07: land the mission-board action-scope fix and focused tests.
-- 2026-03-07: replay the affected board actions with live Playwright and continue the authenticated page/action sweep.