Fix tool install-state, inherit program description, declutter Tools cards

- Tool detail showed installed tools as 'Not installed': /deployments/{name}
  populated 'installed' for path deployments but left 'active' null, and
  ToolDetail keyed off 'active'. Now the endpoint sets active=installed for path,
  and ToolDetail reads 'installed' directly (verified: on-PATH ⇒ True, else False).
- A deployment now inherits its program's description by default: copied at
  creation (CLI create + API _save_deployment on new deployments) + a one-time
  patchup of existing ones (29 deployments).
- Tools page cards no longer list deployments (ProgramCard showDeployments=false) —
  the lens already scopes to the tool; the deployment list is a Programs-catalog thing.

app/src/pages/ToolDetail.tsx

@@ -38,8 +38,9 @@ export function ToolDetailPage() {
         <p className="text-sm text-[var(--muted)] -mt-4 mb-6">{deployment.description}</p>
       )}
 
-      {/* A tool's PATH deployment: install/uninstall is its start/stop. */}
-      <PathLifecycle name={deployment.id} active={deployment.active} onDone={refetch} />
+      {/* A tool's PATH deployment: install/uninstall is its start/stop. Its
+          live state is `installed` (on PATH), which the endpoint sets directly. */}
+      <PathLifecycle name={deployment.id} installed={deployment.installed} onDone={refetch} />
 
       <div className="bg-[var(--card)] border border-[var(--border)] rounded-lg p-5 mb-6">
         <h2 className="text-sm font-semibold text-[var(--muted)] uppercase tracking-wider mb-3">
@@ -65,19 +66,19 @@ export function ToolDetailPage() {
 /** Install/uninstall a tool on PATH — the path deployment's lifecycle. */
 function PathLifecycle({
   name,
-  active,
+  installed: installedState,
   onDone,
 }: {
   name: string
-  active: boolean | null
+  installed: boolean | null
   onDone: () => void
 }) {
   const { mutate, isPending } = useProgramAction()
-  const installed = active === true
+  const installed = installedState === true
   const dot =
-    active === true
+    installedState === true
       ? "bg-green-500"
-      : active === false
+      : installedState === false
         ? "bg-[var(--muted)]"
         : "bg-transparent border border-[var(--muted)]"
   return (

app/src/pages/Tools.tsx

@@ -14,7 +14,7 @@ export function Tools() {
       {isLoading ? (
         <p className="text-[var(--muted)]">Loading...</p>
       ) : programs && programs.length > 0 ? (
-        <ProgramList programs={programs} linkBase="/tools" />
+        <ProgramList programs={programs} linkBase="/tools" showDeployments={false} />
       ) : (
         <p className="text-[var(--muted)]">No tools yet.</p>
       )}