Information Architecture + project/agent visual refresh (experimental) (#7543)

## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work.
> - The board UI is the control surface for issues, projects, agents,
goals, workspaces, and operator settings.
> - The existing navigation and list surfaces make several
high-frequency workflows feel harder to scan than they should,
especially around projects and agents.
> - The product direction is to improve those surfaces without breaking
the existing route model or forcing a new IA on every operator at once.
> - This pull request now keeps the dependent IA, project identity, and
agent-list visual refresh work together while the Issue-to-Task copy
migration is split into #7651.
> - The benefit is a clearer left nav, better project identity, denser
agent/project list rows, and brand-aligned status treatment while
preserving the classic default experience behind a flag.

## Linked Issues or Issue Description

Refs #7645
Refs #7651

Internal planning/work references: PAP-53, PAP-56, PAP-58, PAP-59,
PAP-60, PAP-61, PAP-68, PAP-69, PAP-70, PAP-71, PAP-72, PAP-75, PAP-76,
PAP-80, PAP-85, PAP-86, PAP-87, PAP-88, PAP-89.

## What Changed

- Adds `enableStreamlinedLeftNavigation`, defaulting off, and gates
sidebar presentation so classic navigation remains the default.
- Adds project icon persistence, validation, portability, picker UI, and
`ProjectTile` rendering while defaulting new projects to neutral gray.
- Adds projects-list task-count and budget summary data with focused
server/shared/UI coverage.
- Refreshes agent list rows, row actions, active/recent sidebar
behavior, and status capsule/chip styling for the approved brand state
system.
- Removes the placeholder Conference room and Artifacts nav/routes from
the finalized experimental nav direction.
- Removes `pnpm-lock.yaml` and the Issue-to-Task copy migration from
this PR diff; the copy migration now lives in #7651.

## Verification

- Existing branch verification from the authored commits: UI typecheck,
targeted unit tests, and light/dark visual checks for `/agents`, agent
detail, and design-guide status states.
- Maintainer cleanup verification on `75e34e5`: `git diff --check
origin/master...HEAD` passed, the `design/` diff is empty, and the PR
diff is 61 files, below Greptile's 100-file review limit.
- `pnpm --filter @paperclipai/ui build` passed.
- `NODE_ENV=test pnpm exec vitest run
ui/src/components/Sidebar.test.tsx` passed: 1 file, 8 tests.
- CI and Greptile should rerun on the latest push.

## Risks

- Broad UI surface area: the experimental flag keeps the classic nav
default, but changed shared components such as `EntityRow`,
`ProjectTile`, and agent status badges could affect multiple pages.
- Database migration: `projects.icon` is additive and nullable, but
migration ordering and portability import/export must stay aligned.
- The Issue-to-Task copy migration is now separated into #7651, so
reviewers should evaluate this PR as IA/project/agent presentation work
only.
- Visual regressions are possible across smaller widths because the PR
intentionally changes dense list-row layouts.

## Model Used

Claude Opus 4.8 assisted the original feature commits.
Paperclip-Paperclip agents assisted some planning/design commits. Codex
/ GPT-5-class coding agent with shell, GitHub CLI, and repository access
performed this PR-readiness cleanup and split.

## 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 checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either (a) linked existing issues with `Fixes: #` / `Closes
#` / `Refs #` OR (b) described the issue in-PR following the relevant
issue template
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] 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] All Paperclip CI gates are green
- [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: Dotta <bippadotta@protonmail.com>

server/src/services/company-portability.ts

@@ -35,6 +35,7 @@ import {
   AGENT_DEFAULT_MAX_CONCURRENT_RUNS,
   ISSUE_PRIORITIES,
   ISSUE_STATUSES,
+  PROJECT_ICON_NAMES,
   PROJECT_STATUSES,
   ROUTINE_CATCH_UP_POLICIES,
   ROUTINE_CONCURRENCY_POLICIES,
@@ -471,6 +472,10 @@ function normalizePortableProjectEnv(value: unknown): AgentEnvConfig | null {
   return parsed.success ? parsed.data : null;
 }
 
+function normalizeProjectIconName(value: string | null | undefined): string | null {
+  return value && PROJECT_ICON_NAMES.includes(value as typeof PROJECT_ICON_NAMES[number]) ? value : null;
+}
+
 function extractPortableScopedEnvInputs(
   scope: {
     label: string;
@@ -579,6 +584,7 @@ type ProjectLike = {
   leadAgentId: string | null;
   targetDate: string | null;
   color: string | null;
+  icon: string | null;
   status: string;
   env: Record<string, unknown> | null;
   executionWorkspacePolicy: Record<string, unknown> | null;
@@ -2842,6 +2848,7 @@ function buildManifestFromPackageFiles(
       leadAgentSlug: asString(extension.leadAgentSlug),
       targetDate: asString(extension.targetDate),
       color: asString(extension.color),
+      icon: asString(extension.icon),
       status: asString(extension.status),
       env: normalizePortableProjectEnv(extension.env),
       executionWorkspacePolicy: isPlainRecord(extension.executionWorkspacePolicy)
@@ -3617,6 +3624,7 @@ export function companyPortabilityService(db: Db, storage?: StorageService) {
         leadAgentSlug: project.leadAgentId ? (idToSlug.get(project.leadAgentId) ?? null) : null,
         targetDate: project.targetDate ?? null,
         color: project.color ?? null,
+        icon: project.icon ?? null,
         status: project.status,
         executionWorkspacePolicy: exportPortableProjectExecutionWorkspacePolicy(
           slug,
@@ -4708,6 +4716,7 @@ export function companyPortabilityService(db: Db, storage?: StorageService) {
             leadAgentId: projectLeadAgentId,
             targetDate: manifestProject.targetDate,
             color: manifestProject.color,
+            icon: normalizeProjectIconName(manifestProject.icon),
             status: manifestProject.status && PROJECT_STATUSES.includes(manifestProject.status as any)
               ? manifestProject.status as typeof PROJECT_STATUSES[number]
               : "backlog",

server/src/services/instance-settings.ts

@@ -43,6 +43,7 @@ export function normalizeExperimentalSettings(raw: unknown): InstanceExperimenta
     return {
       enableEnvironments: parsed.data.enableEnvironments ?? false,
       enableIsolatedWorkspaces: parsed.data.enableIsolatedWorkspaces ?? false,
+      enableStreamlinedLeftNavigation: parsed.data.enableStreamlinedLeftNavigation ?? false,
       enableIssuePlanDecompositions: parsed.data.enableIssuePlanDecompositions ?? false,
       enableCloudSync: parsed.data.enableCloudSync ?? false,
       autoRestartDevServerWhenIdle: parsed.data.autoRestartDevServerWhenIdle ?? false,
@@ -55,6 +56,7 @@ export function normalizeExperimentalSettings(raw: unknown): InstanceExperimenta
   return {
     enableEnvironments: false,
     enableIsolatedWorkspaces: false,
+    enableStreamlinedLeftNavigation: false,
     enableIssuePlanDecompositions: false,
     enableCloudSync: false,
     autoRestartDevServerWhenIdle: false,

server/src/services/projects.ts

@@ -1,20 +1,23 @@
-import { and, asc, desc, eq, inArray } from "drizzle-orm";
+import { and, asc, desc, eq, inArray, sql } from "drizzle-orm";
 import type { Db } from "@paperclipai/db";
 import {
   projects,
   projectGoals,
   goals,
+  issues,
+  budgetPolicies,
   pluginManagedResources,
   plugins,
   projectWorkspaces,
   workspaceRuntimeServices,
 } from "@paperclipai/db";
 import {
-  PROJECT_COLORS,
   deriveProjectUrlKey,
   hasNonAsciiContent,
   isUuidLike,
   normalizeProjectUrlKey,
+  type BudgetWindowKind,
+  type ProjectBudgetSummary,
   type ProjectCodebase,
   type ProjectExecutionWorkspacePolicy,
   type ProjectGoalRef,
@@ -62,6 +65,8 @@ interface ProjectWithGoals extends Omit<ProjectRow, "executionWorkspacePolicy">
   workspaces: ProjectWorkspace[];
   primaryWorkspace: ProjectWorkspace | null;
   managedByPlugin: ProjectManagedByPlugin | null;
+  taskCount?: number;
+  budget?: ProjectBudgetSummary | null;
 }
 
 interface ProjectShortnameRow {
@@ -315,6 +320,86 @@ async function attachWorkspaces(db: Db, rows: ProjectWithGoals[]): Promise<Proje
   });
 }
 
+type TaskCountRow = { projectId: string | null; count: number };
+type ProjectBudgetRow = { scopeId: string; amount: number; windowKind: string };
+
+/**
+ * Build the per-project task-count and budget lookups from the aggregate query
+ * rows. Pure (no DB) so the merge logic can be unit-tested in isolation.
+ * Only active policies with a positive amount surface as a budget.
+ */
+export function buildProjectListMetricMaps(taskCountRows: TaskCountRow[], budgetRows: ProjectBudgetRow[]) {
+  const taskCountByProjectId = new Map<string, number>();
+  for (const row of taskCountRows) {
+    if (row.projectId) taskCountByProjectId.set(row.projectId, Number(row.count) || 0);
+  }
+
+  const budgetByProjectId = new Map<string, ProjectBudgetSummary>();
+  for (const row of budgetRows) {
+    if (row.amount > 0) {
+      budgetByProjectId.set(row.scopeId, {
+        amountCents: row.amount,
+        windowKind: row.windowKind as BudgetWindowKind,
+      });
+    }
+  }
+
+  return { taskCountByProjectId, budgetByProjectId };
+}
+
+/**
+ * Attach lightweight list-only metrics (task count + budget) to a set of
+ * projects using two aggregate queries (no N+1). Used by the projects list
+ * view (IA Phase 4 — PAP-60).
+ */
+async function attachListMetrics(
+  db: Db,
+  companyId: string,
+  rows: ProjectWithGoals[],
+): Promise<ProjectWithGoals[]> {
+  if (rows.length === 0) return rows;
+
+  const projectIds = rows.map((r) => r.id);
+
+  const [taskCountRows, budgetRows] = await Promise.all([
+    db
+      .select({
+        projectId: issues.projectId,
+        count: sql<number>`count(*)::int`,
+      })
+      .from(issues)
+      .where(and(eq(issues.companyId, companyId), inArray(issues.projectId, projectIds)))
+      .groupBy(issues.projectId),
+    db
+      .select({
+        scopeId: budgetPolicies.scopeId,
+        amount: budgetPolicies.amount,
+        windowKind: budgetPolicies.windowKind,
+      })
+      .from(budgetPolicies)
+      .where(
+        and(
+          eq(budgetPolicies.companyId, companyId),
+          eq(budgetPolicies.scopeType, "project"),
+          eq(budgetPolicies.metric, "billed_cents"),
+          eq(budgetPolicies.isActive, true),
+          inArray(budgetPolicies.scopeId, projectIds),
+        ),
+      ),
+  ]);
+
+  const { taskCountByProjectId, budgetByProjectId } = buildProjectListMetricMaps(
+    taskCountRows,
+    budgetRows,
+  );
+
+  return rows.map((row) => ({
+    ...row,
+    taskCount: taskCountByProjectId.get(row.id) ?? 0,
+    budget: budgetByProjectId.get(row.id) ?? null,
+  }));
+}
+
 /** Sync the project_goals join table for a single project. */
 async function syncGoalLinks(db: Db, projectId: string, companyId: string, goalIds: string[]) {
   // Delete existing links
@@ -463,13 +548,8 @@ export function projectService(db: Db) {
     const { goalIds: inputGoalIds, ...projectData } = data;
     const ids = resolveGoalIds({ goalIds: inputGoalIds, goalId: projectData.goalId });
 
-    // Auto-assign a color from the palette if none provided
-    if (!projectData.color) {
-      const existing = await db.select({ color: projects.color }).from(projects).where(eq(projects.companyId, companyId));
-      const usedColors = new Set(existing.map((r) => r.color).filter(Boolean));
-      const nextColor = PROJECT_COLORS.find((c) => !usedColors.has(c)) ?? PROJECT_COLORS[existing.length % PROJECT_COLORS.length];
-      projectData.color = nextColor;
-    }
+    // Note: color is intentionally NOT auto-assigned. New projects default to
+    // `color = null` (neutral gray) unless an explicit color is supplied. See PAP-68.
 
     const existingProjects = await db
       .select({ id: projects.id, name: projects.name })
@@ -512,7 +592,8 @@ export function projectService(db: Db) {
     list: async (companyId: string): Promise<ProjectWithGoals[]> => {
       const rows = await db.select().from(projects).where(eq(projects.companyId, companyId));
       const withGoals = await attachGoals(db, rows);
-      return attachWorkspaces(db, withGoals);
+      const withWorkspaces = await attachWorkspaces(db, withGoals);
+      return attachListMetrics(db, companyId, withWorkspaces);
     },
 
     listByIds: async (companyId: string, ids: string[]): Promise<ProjectWithGoals[]> => {