fix(orchestrator): path hashing + system_status version emit

[evannadeau]

Summary

Two independent latent bugs in plugins/orchestrator/mcp/server.ts. Bundled because both are one-line fixes to the same file with the same bun run build cost.

1. Path hashing — leading-dash strip broke the JSONL filewatcher on POSIX (cab2a57)

projectHash mirrors how Claude Code names per-project directories under ~/.claude/projects/. CC keeps the leading dash that comes from POSIX absolute paths (/home/foo → -home-foo). The previous .replace(/^-+/, "") stripped that dash, producing home-foo instead of -home-foo and silently pointing the agent-channel JSONL filewatcher at a directory that doesn't exist.

The MCP server stayed up and tools answered normally, but no cross-session channel events were observed (and downstream features that depend on the watcher quietly broke). Diagnostic: absence of offsets-<id8>.json files in <project>/.orchestrator-state/agent-channel/ despite live JSONLs in ~/.claude/projects/-<...>.

Fix: drop the strip. The Windows case (C:\foo → C--foo) just produces a cosmetic double-dash and remains harmless — that was the original reason for the strip, but the cost on POSIX (silent feature death) outweighs the cosmetic cleanup on Windows.

2. system_status emitted hardcoded version string (93c5da6)

system_status reported a literal 0.30.28 instead of ${PLUGIN_VERSION}. The 0.30.31 cleanup (see the comment at mcp/server.ts:32-37) consolidated the version source to read from package.json at module load specifically so it wouldn't be "hardcoded in multiple spots and forgotten on every other version bump" — but the system_status line at mcp/server.ts:655 was missed during that consolidation. Every bump since (0.30.32 → 0.30.38) shipped with the line still saying 0.30.28.

Concrete symptom: running an up-to-date install and calling system_status returns **Version**: orchestrator MCP server **0.30.28** regardless of the actual package version. The startup banner uses PLUGIN_VERSION directly and reports correctly — only this one line was wrong.

Fix: use the existing PLUGIN_VERSION constant.

Files changed

• plugins/orchestrator/mcp/server.ts — 2 single-line edits (line 2183 path-hashing, line 655 version emit)
• plugins/orchestrator/dist/server.js — rebuilt via bun run build

Tested

• bun run typecheck — clean
• bun test — 516 pass / 0 fail / 38 files / 1207 assertions
• Confirmed dist/server.js no longer contains the 0.30.28 literal in the system_status output line; build output is byte-stable across repeated bun run build runs against the same source.

Test plan

• POSIX install: confirm ~/.claude/projects/-<...> is scanned — offsets-*.json files appear in <project>/.orchestrator-state/agent-channel/ and @SA-<id8> channel addresses deliver to peer sessions.
• Windows install: confirm path-hashing still produces a valid directory name for C:\foo inputs (cosmetic double-dash C--foo expected).
• Any install: confirm system_status reports the package.json version, not the hardcoded 0.30.28.

🤖 Generated with Claude Code