docs: update ACP prompt timeout default 60s→120s (#3245)

PR #3244 increased acpPromptTimeoutMs from 60000 to 120000.
Docs still showed the old default.

Updates:
- docs/enterprise.md: default 60000→120000, 60s→120s
- docs/getting-started.md: default 60000→120000

Author: OneStepAt4time

docs/enterprise.md

@@ -266,7 +266,7 @@ All configuration is done via environment variables (prefixed `AEGIS_`). Legacy
 | `AEGIS_AUTH_TOKEN` | _(empty)_ | Master bearer token (empty = no auth) |
 | `AEGIS_STATE_DIR` | `~/.aegis` | State directory (sessions, PID file) |
 | `AEGIS_ACP_BIN` | _(auto)_ | Path to the ACP binary (auto-detected if empty) |
-| `AEGIS_ACP_PROMPT_TIMEOUT_MS` | `60000` | Timeout in ms for ACP JSON-RPC requests (default 60s). Increase for slow BYO-LLM proxy setups (min: 1000) |
+| `AEGIS_ACP_PROMPT_TIMEOUT_MS` | `120000` | Timeout in ms for ACP JSON-RPC requests (default 120s). Increase for slow BYO-LLM proxy setups (min: 1000) |
 | `AEGIS_CONFIG` | _(auto)_ | Path to `aegis.config.json` |
 | `AEGIS_LOG_LEVEL` | `info` | Log verbosity: `trace`, `debug`, `info`, `warn`, `error` |
 | `AEGIS_MAX_SESSIONS` | _(unlimited)_ | Maximum concurrent sessions |

docs/getting-started.md

@@ -283,7 +283,7 @@ Aegis is configured via environment variables:
 | `AEGIS_REDIS_URL` | `redis://localhost:6379` | Redis URL (used when `AEGIS_SESSION_STORE=redis`) |
 | `AEGIS_REDIS_KEY_PREFIX` | `aegis` | Redis key prefix |
 | `AEGIS_STRICT_RBAC` | `false` | Enforce RBAC on protected endpoints even when auth is disabled |
-| `AEGIS_ACP_PROMPT_TIMEOUT_MS` | `60000` | Timeout in ms for ACP JSON-RPC requests (increase for slow BYO-LLM proxy setups) |
+| `AEGIS_ACP_PROMPT_TIMEOUT_MS` | `120000` | Timeout in ms for ACP JSON-RPC requests (increase for slow BYO-LLM proxy setups) |
 
 See the [Enterprise Deployment Guide](enterprise.md#configuration-reference) for the complete environment variable reference (rate limiting, OIDC, hooks, notifications, alerting, and more).