Remove adapter support matrix table from Company Environments (#8398)

## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - Agents run in execution environments, and the Company Environments
settings page lets operators configure them
> - That page rendered an "environment support by adapter" matrix table
plus two descriptive text boxes explaining the adapter/driver/sandbox
support model
> - That matrix duplicated information already surfaced where operators
actually pick a driver/provider, and added a wide, dense table that
provided no actionable value on this screen
> - This pull request removes the support-matrix table and the two
explanatory text boxes above it, along with the now-orphaned helper
component, derived constant, and unused imports
> - The benefit is a simpler, less cluttered environments settings page
that only shows the controls an operator acts on

## Linked Issues or Issue Description

No public GitHub issue exists for this. Describing the change following
the feature-request template:

### Problem or motivation

The Company Environments settings page showed an adapter support matrix
table (Adapter × Local/SSH/Sandbox) and two paragraphs of descriptive
text above it. The table restated the static adapter/driver support
model and the sandbox-provider plugin caveat, neither of which is
actionable on this page — operators don't change adapter capabilities
here, they create and edit environments. The table was wide enough to
require horizontal scroll and added visual noise without helping the
operator complete any task.

### Proposed solution

Remove the support-matrix table and the two descriptive text boxes above
it from `CompanyEnvironments.tsx`, along with the now-unused helper
component, derived constant, locals, and imports. Leave all environment
create/edit controls, provider selection, and sandbox-provider logic
untouched.

### Alternatives considered

Collapsing the table behind a disclosure/"Learn more" toggle instead of
removing it — rejected because the information is static, non-actionable
on this screen, and already available where operators pick a
driver/provider; hiding it would keep the maintenance cost without
adding value.

### Roadmap alignment

Not a roadmap feature — this is a small, focused UI cleanup that removes
non-actionable content from an existing settings page.

Related (already merged) work that last touched this copy:
paperclipai/paperclip#4902 (clarified sandbox-provider messaging in
company environments). No open duplicate PR was found.

## What Changed

- Removed the adapter support matrix `<table>` from
`ui/src/pages/CompanyEnvironments.tsx`
- Removed the two descriptive text boxes rendered above that table
(adapter support model + installed sandbox providers blurbs)
- Deleted the now-unused `SupportMark` helper component and the
`ENVIRONMENT_SUPPORT_ROWS` derived constant
- Removed the now-unused `sandboxSupportVisible` local and four
now-unused imports (`AGENT_ADAPTER_TYPES`,
`getAdapterEnvironmentSupport`, `Check`, `adapterLabels`)
- Updated `ui/src/pages/CompanySettings.test.tsx` to drop the two
assertions tied to the removed copy

## Verification

- `vitest run src/pages/CompanySettings.test.tsx` → 4/4 pass
- `tsc --noEmit` on the UI project → no errors in the changed files
- The remaining environment create/edit controls, provider selection,
and sandbox-provider logic are untouched (the `environmentCapabilities`,
`discoveredPluginSandboxProviders`, and `sandboxCreationEnabled` values
are still used by the form)

## Risks

Low risk — pure presentational removal of a read-only informational
table and static copy. No API, data model, or behavioral changes; no
state that other components depend on was removed.

## Model Used

Claude (Anthropic), model id `claude-opus-4-8` (Claude Opus 4.x family),
with extended thinking and tool use, run via Claude Code.

## 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 not referenced internal/instance-local Paperclip issues or
links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip`
URLs)
- [x] My branch name describes the change (e.g. `docs/...`, `fix/...`)
and contains no internal Paperclip ticket id or instance-derived 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
- [ ] All Paperclip CI gates are green
- [ ] 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>

ui/src/pages/CompanyEnvironments.tsx

@@ -1,14 +1,12 @@
 import { useEffect, useState } from "react";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import {
-  AGENT_ADAPTER_TYPES,
-  getAdapterEnvironmentSupport,
   type EnvBinding,
   type Environment,
   type EnvironmentProbeResult,
   type JsonSchema,
 } from "@paperclipai/shared";
-import { Check, Settings } from "lucide-react";
+import { Settings } from "lucide-react";
 import { environmentsApi } from "@/api/environments";
 import { instanceSettingsApi } from "@/api/instanceSettings";
 import { secretsApi } from "@/api/secrets";
@@ -30,7 +28,6 @@ import { queryKeys } from "@/lib/queryKeys";
 import {
   Field,
   ToggleField,
-  adapterLabels,
 } from "../components/agent-config-primitives";
 
 type EnvironmentFormState = {
@@ -50,11 +47,6 @@ type EnvironmentFormState = {
   envVars: Record<string, EnvBinding>;
 };
 
-const ENVIRONMENT_SUPPORT_ROWS = AGENT_ADAPTER_TYPES.map((adapterType) => ({
-  adapterType,
-  support: getAdapterEnvironmentSupport(adapterType),
-}));
-
 function buildEnvironmentPayload(form: EnvironmentFormState) {
   return {
     name: form.name.trim(),
@@ -173,17 +165,6 @@ function summarizeSandboxConfig(config: Record<string, unknown>): string | null
   return null;
 }
 
-function SupportMark({ supported }: { supported: boolean }) {
-  return supported ? (
-    <span className="inline-flex items-center gap-1 text-green-700 dark:text-green-400">
-      <Check className="h-3 w-3" />
-      Yes
-    </span>
-  ) : (
-    <span className="text-muted-foreground">No</span>
-  );
-}
-
 export function CompanyEnvironments() {
   const { selectedCompanyId } = useCompany();
   const { setBreadcrumbs } = useBreadcrumbs();
@@ -440,7 +421,6 @@ export function CompanyEnvironments() {
     }))
     .sort((left, right) => left.displayName.localeCompare(right.displayName));
   const sandboxCreationEnabled = discoveredPluginSandboxProviders.length > 0;
-  const sandboxSupportVisible = sandboxCreationEnabled;
   const pluginSandboxProviders =
     environmentForm.sandboxProvider.trim().length > 0 &&
     environmentForm.sandboxProvider !== "fake" &&
@@ -561,62 +541,6 @@ export function CompanyEnvironments() {
             </div>
           </div>
         </div>
-        <div className="rounded-md border border-border/60 bg-muted/20 px-3 py-2 text-xs text-muted-foreground">
-          Environment choices use the same adapter support matrix as agent defaults. SSH is always available for
-          remote-managed adapters, and sandbox environments appear only when a run-capable sandbox provider plugin is
-          installed.
-        </div>
-        {sandboxCreationEnabled ? (
-          <div className="rounded-md border border-border/60 bg-muted/20 px-3 py-2 text-xs text-muted-foreground">
-            Installed sandbox providers:{" "}
-            <span className="font-medium text-foreground">
-              {discoveredPluginSandboxProviders.map((provider) => provider.displayName).join(", ")}
-            </span>
-            . These are not adapter types. They back the Sandbox driver for adapters that support sandbox execution.
-          </div>
-        ) : null}
-
-        <div className="overflow-x-auto">
-          <table className="w-full min-w-[34rem] text-left text-xs">
-            <caption className="sr-only">Environment support by adapter</caption>
-            <thead className="border-b border-border text-muted-foreground">
-              <tr>
-                <th className="py-2 pr-3 font-medium">Adapter</th>
-                <th className="px-3 py-2 font-medium">Local</th>
-                <th className="px-3 py-2 font-medium">SSH</th>
-                {sandboxSupportVisible ? (
-                  <th className="px-3 py-2 font-medium">Sandbox via plugin</th>
-                ) : null}
-              </tr>
-            </thead>
-            <tbody className="divide-y divide-border/60">
-              {(environmentCapabilities?.adapters.map((support) => ({
-                adapterType: support.adapterType,
-                support,
-              })) ?? ENVIRONMENT_SUPPORT_ROWS).map(({ adapterType, support }) => (
-                <tr key={adapterType}>
-                  <td className="py-2 pr-3 font-medium">
-                    {adapterLabels[adapterType] ?? adapterType}
-                  </td>
-                  <td className="px-3 py-2">
-                    <SupportMark supported={support.drivers.local === "supported"} />
-                  </td>
-                  <td className="px-3 py-2">
-                    <SupportMark supported={support.drivers.ssh === "supported"} />
-                  </td>
-                  {sandboxSupportVisible ? (
-                    <td className="px-3 py-2">
-                      <SupportMark
-                        supported={discoveredPluginSandboxProviders.some((provider) =>
-                          support.sandboxProviders[provider.provider] === "supported")}
-                      />
-                    </td>
-                  ) : null}
-                </tr>
-              ))}
-            </tbody>
-          </table>
-        </div>
 
         <div className="space-y-3">
           <div className="flex flex-wrap items-center justify-between gap-3">

ui/src/pages/CompanySettings.test.tsx

@@ -351,9 +351,7 @@ describe("CompanyEnvironments", () => {
     await flushReact();
     await flushReact();
 
-    expect(container.textContent).toContain("Installed sandbox providers:");
     expect(container.textContent).toContain("Secure Sandbox");
-    expect(container.textContent).toContain("These are not adapter types.");
 
     const editButton = Array.from(container.querySelectorAll("button"))
       .find((button) => button.textContent?.trim() === "Edit");