Sync/master post pap1497 followups 2026 04 15 (#3779)

## Thinking Path

> - Paperclip orchestrates AI agents for zero-human companies
> - The board depends on issue, inbox, cost, and company-skill surfaces
to stay accurate and fast while agents are actively working
> - The PAP-1497 follow-up branch exposed a few rough edges in those
surfaces: stale active-run state on completed issues, missing creator
filters, oversized issue payload scans, and placeholder issue-route
parsing
> - Those gaps make the control plane harder to trust because operators
can see misleading run state, miss the right subset of work, or pay
extra query/render cost on large issue records
> - This pull request tightens those follow-ups across server and UI
code, and adds regression coverage for the affected paths
> - The benefit is a more reliable issue workflow, safer high-volume
cost aggregation, and clearer board/operator navigation

## What Changed

- Added the `v2026.415.0` release changelog entry.
- Fixed stale issue-run presentation after completion and reused the
shared issue-path parser so literal route placeholders no longer become
issue links.
- Added creator filters to the Issues page and Inbox, including
persisted filter-state normalization and regression coverage.
- Bounded issue detail/list project-mention scans and trimmed large
issue-list payload fields to keep issue reads lighter.
- Hardened company-skill list projection and cost/finance aggregation so
large markdown blobs and large summed values do not leak into list
responses or overflow 32-bit casts.
- Added targeted server/UI regression tests for company skills,
costs/finance, issue mention scanning, creator filters, inbox
normalization, and issue reference parsing.

## Verification

- `pnpm exec vitest run
server/src/__tests__/company-skills-service.test.ts
server/src/__tests__/costs-service.test.ts
server/src/__tests__/issues-goal-context-routes.test.ts
server/src/__tests__/issues-service.test.ts ui/src/lib/inbox.test.ts
ui/src/lib/issue-filters.test.ts ui/src/lib/issue-reference.test.ts`
- `gh pr checks 3779`
Current pass set on the PR head: `policy`, `verify`, `e2e`,
`security/snyk (cryppadotta)`, `Greptile Review`

## Risks

- Creator filter options are derived from the currently loaded
issue/agent data, so very sparse result sets may not surface every
historical creator until they appear in the active dataset.
- Cost/finance aggregate casts now use `double precision`; that removes
the current overflow risk, but future schema changes should keep
large-value aggregation behavior under review.
- Issue detail mention scanning now skips comment-body scans on the
detail route, so any consumer that relied on comment-only project
mentions there would need to fetch them separately.

## Model Used

- OpenAI Codex, GPT-5-based coding agent with terminal tool use and
local code execution in the Paperclip workspace. Exact internal model
ID/context-window exposure is not surfaced in this session.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [ ] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>

ui/src/lib/inbox.ts

@@ -9,6 +9,7 @@ import type {
 import {
   applyIssueFilters,
   defaultIssueFilterState,
+  normalizeIssueFilterState,
   type IssueFilterState,
 } from "./issue-filters";
 
@@ -137,25 +138,6 @@ const defaultInboxFilterPreferences: InboxFilterPreferences = {
   issueFilters: defaultIssueFilterState,
 };
 
-function normalizeStringArray(value: unknown): string[] {
-  if (!Array.isArray(value)) return [];
-  return value.filter((entry): entry is string => typeof entry === "string");
-}
-
-function normalizeIssueFilterState(value: unknown): IssueFilterState {
-  if (!value || typeof value !== "object") return { ...defaultIssueFilterState };
-  const candidate = value as Partial<Record<keyof IssueFilterState, unknown>>;
-  return {
-    statuses: normalizeStringArray(candidate.statuses),
-    priorities: normalizeStringArray(candidate.priorities),
-    assignees: normalizeStringArray(candidate.assignees),
-    labels: normalizeStringArray(candidate.labels),
-    projects: normalizeStringArray(candidate.projects),
-    workspaces: normalizeStringArray(candidate.workspaces),
-    hideRoutineExecutions: candidate.hideRoutineExecutions === true,
-  };
-}
-
 function normalizeInboxCategoryFilter(value: unknown): InboxCategoryFilter {
   return value === "issues_i_touched"
     || value === "join_requests"
@@ -244,7 +226,7 @@ export function loadCollapsedInboxGroupKeys(
     const raw = localStorage.getItem(storageKey);
     if (!raw) return new Set();
     const parsed = JSON.parse(raw);
-    return new Set(normalizeStringArray(parsed));
+    return new Set(Array.isArray(parsed) ? parsed.filter((entry): entry is string => typeof entry === "string") : []);
   } catch {
     return new Set();
   }