docs(multi-account): remove is non-destructive — say so everywhere

Removing an account only unregisters it: folder, login, and session
history stay on disk, and re-adding the same name reattaches them
(verified during #124 testing). Noted in the README CLI table, the
Remove button tooltip, and the post-remove notice.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017kCK4t5JSVynVZxGcrTGGp

Author: grimmerk

README.md

@@ -75,6 +75,8 @@ Tab completion included (zsh): `claude <TAB>` completes account names; `codev ac
 | `codev account show` (`preview`) | Dry-run print of the generated `accounts.sh` |
 | `codev account install` / `uninstall` | Add / remove the `~/.zshrc` source block |
 
+> **Remove is non-destructive.** It only unregisters: the account's folder (`~/.claude-<name>`), login, and session history all stay on disk. `codev account add <name>` (or the UI) later reattaches everything — identity and sessions reappear immediately, no re-login needed.
+
 The `codev` command runs the CLI **bundled inside CodeV.app** (`ELECTRON_RUN_AS_NODE`) — no system Node, no sudo, no PATH edits. CodeV refreshes `accounts.sh` on every launch, so moving or renaming the app self-heals. (Not available in MAS builds — sandboxed.)
 
 **In the CodeV UI:**

src/popup.tsx

@@ -181,7 +181,9 @@ const PopupDefaultExample = ({
     runAccountOp(async () => {
       const r = await window.electronAPI.removeAccount(label);
       if (r.ok) {
-        setAccountsNotice(`Removed "${label}" (its folder stays on disk).`);
+        setAccountsNotice(
+        `Removed "${label}" — its folder, login and sessions stay on disk; add "${label}" back anytime to reattach them.`,
+      );
         await refreshAccounts();
       } else {
         setAccountsNotice('');
@@ -829,7 +831,7 @@ const PopupDefaultExample = ({
                       style={{ ...smallButtonStyle, color: THEME.button.warning }}
                       onClick={() => handleRemoveAccount(a.label)}
                       disabled={accountsBusy}
-                      title="Unregister (keeps its folder on disk)"
+                      title="Unregister only — folder, login & sessions stay on disk; re-add the same name to reattach"
                     >
                       Remove
                     </button>