Bug Report

Title: /new Discord slash command times out due to preflight compaction WRITE lock holding session for 60–360s

Description

When a user invokes /new (or /reset) via Discord's slash command UI, the InteractionEventListener times out at 30 seconds because runPreflightCompactionIfNeeded holds a session WRITE lock for up to COMPACTION_RETRY_AGGREGATE_TIMEOUT_MS (60s), plus the actual compaction work.

Discord's InteractionEventListener has a 30s timeout — after which Discord shows "The application did not respond" to the user and the command is abandoned. The session reset never completes.

Root Cause

1. Discord slash command /new arrives as a followup run via createFollowupRunner
2. createFollowupRunner calls runPreflightCompactionIfNeeded (agent-runner-memory.ts)
3. When session tokens > ~104K (MiniMax M2 128K context − 20K reserve − 4K soft floor), preflight compaction fires
4. shouldRunPreflightCompaction acquires a WRITE lock on the session file and runs compaction (60–360s)
5. Discord's InteractionEventListener times out at 30s → "The application did not respond"
6. The reset command never reaches commands-core.ts reset hooks

Existing Bypasses (Not Applied to Reset Commands)

runPreflightCompactionIfNeeded already skips compaction for:

• isHeartbeat — returns early at line ~328
• isCli — returns early at line ~328

Reset commands (/new, /reset, /acp) are not bypassed, even though they go through their own dedicated reset hooks in commands-core.ts and don't need compaction (they clear the session entirely).

Proposed Fix

In agent-runner-memory.ts around line 328, add reset-command detection alongside the existing isHeartbeat/isCli bypass:

// Existing:
if (params.isHeartbeat || isCli) return entry;

// Add:
const isResetCommand = params.followupRun.prompt?.match(/^\/(new|reset)(?:\s|$)/);
if (isResetCommand) return entry;

The pattern ^\/(new|reset)(?:\s|$) is already used in commands-core.ts line 162 for the same purpose.

Impact

• Severity: High — prevents session reset from completing on Discord
• Affected versions: All versions since preflight compaction was introduced (post-#40295 fix)
• Workaround: None for Discord users; CLI users are unaffected because CLI has no InteractionEventListener timeout

Evidence

• Discord InteractionEventListener timeout: DISCORD_SLOW_LISTENER_THRESHOLD_MS = 30s (Carbon package)
• Compaction aggregate timeout: COMPACTION_RETRY_AGGREGATE_TIMEOUT_MS = 60s (attempt.ts line 2945)
• Compaction actual wall time can reach 360s (6 minutes) per openclaw-gateway-eq-slow-restart.sh
• Reset command pattern: ^\/(new|reset)(?:\s|$) (commands-core.ts line 162)
• Bypass pattern used elsewhere: shouldBypassConfiguredAcpEnsure in extensions/discord/src/monitor/native-command.ts line 235