claim ohm session 0075 (placeholder) + sessions.json entry

ohm/0075/SESSION-0075.0-TRANSCRIPT-2026-06-05T12-45--INPROGRESS.md

@@ -0,0 +1,23 @@
+# Session 0075.0 — Transcript
+
+> App: ohm
+> Start: 2026-06-05T12-45 (PST)
+> Type: coding
+> Status: **PLACEHOLDER — claimed at session start; finalized at session end.**
+>
+> This file reserves session ID 0075 for ohm. The driver replaces this
+> body with the full transcript and renames the file to its final
+> SESSION-0075.0-TRANSCRIPT-2026-06-05T12-45--<end>.md form at session end.
+
+## Launch prompt
+
+```
+Goal: §22 S2 — next slice of the three-tier (deployment→project→collection) refactor, per the three-tier design doc / roadmap. Continue from S1 (collection grain, mig 029, shipped v0.40.0).
+
+```
+
+## Deferred decisions
+
+_Autonomous-mode low-confidence calls the driver made and would have
+liked operator input on. Appended as the session runs; surfaced at
+finalize. Empty if none._

ohm/sessions.json

@@ -211,5 +211,8 @@
   },
   "0074": {
     "title": ""
+  },
+  "0075": {
+    "title": ""
   }
 }