Summary

After #1184 (cross-wing topic tunnels), tunnels are silently never created for projects whose directory name contains a hyphen or space. The miner's tunnel-computation step looks the wing up in topics_by_wing under the raw dirname (mempalace-public), but init records it under that raw name while writing mempalace.yaml with the normalized name (mempalace_public). At mine time the yaml wins, the lookup misses, and _compute_topic_tunnels_for_wing returns 0 with no warning.

Real-world common case: any project dir like my-app, mempalace-public, react-thing is affected. Single-token dirs (memorymark, desktop) work by coincidence.

Repro

Five sibling project dirs init+mine'd in order with --llm --llm-provider anthropic:

Expected tunnels: 7 (2 ts↔memorymark + 5 public↔private).
Actual tunnels: 2 (only the no-hyphen pair memorymark ↔ mempalace-ts).

Direct repro of the lookup miss:

```python

from mempalace.miner import get_topics_by_wing
from mempalace.palace_graph import topic_tunnels_for_wing
m = get_topics_by_wing()
list(m.keys())
['mempalace-ts', 'desktop', 'memorymark', 'mempalace-public', 'mempal-private']
len(topic_tunnels_for_wing('mempal_private', m, min_count=1)) # what mine actually calls
0
len(topic_tunnels_for_wing('mempal-private', m, min_count=1)) # what's in topics_by_wing
5
```

Root cause

• mempalace/cli.py:146 (cmd_init): `wing = project_path.name` — raw dirname.
• mempalace/room_detector_local.py:307 (writes mempalace.yaml): `project_name = project_path.name.lower().replace(" ", "").replace("-", "")`.
• mempalace/miner.py:944 reads `config["wing"]` from the yaml, so the underscored form reaches _compute_topic_tunnels_for_wing but the registry holds the hyphenated form.

The same normalization rule lives in two files; one path applies it, the other doesn't.

Why tests missed it

tests/test_miner.py topic-tunnel fixtures use wing_alpha, wing_beta, foo, bar — separator-free names that look identical before and after normalization.

Suggested fix

Extract a shared sanitize_wing_name() (anywhere reasonable — config.py already has sanitize_name) and call it from both cli.py:146 and room_detector_local.py:307. Add a regression test using a hyphenated dirname.

Repro environment

• macOS, Python 3.11, mempalace 3.3.3 from feat(graph): cross-wing tunnels by shared topics (#1180) #1184 head (feat/cross-wing-topic-tunnels).
• 5 project dirs, isolated HOME=/tmp/mp-tunnel-test, --llm-provider anthropic --llm-model claude-haiku-4-5-20251001.