Retire lp_profiles + LP Tracker; repoint Dashboard committed to the grid (v0.1.0:78)

The fundraising grid + email capture is the canonical system of record. lp_profiles
was a superseded single-fund model with no reachable create/edit path, and the LP
Tracker page was already orphaned (no nav entry + a redirect bouncing it to the grid).

- Remove /api/lp-profiles* endpoints + handlers, the unused lp-breakdown report,
  the contact-dossier LP section, the demo-seed LP block, and (frontend) the
  LPTrackerPage component + its lp-tracker->fundraising-grid redirect.
- Dashboard "Total Committed" now sums fundraising_investors.total_invested
  (graveyarded investors excluded) instead of the orphaned lp_profiles table, which
  read ~$0. "Total Funded" dropped: the grid tracks commitments, not a funded amount,
  and the frontend never rendered it.
- Leave the empty lp_profiles table/index, the contact-delete soft-delete cascade,
  and the --reset-all-data clear in place (never-hard-delete).
- Tests: add test_dashboard_report.py; update test_soft_delete_reads.py. 21/21 green.

backend/test_soft_delete_reads.py

@@ -11,7 +11,7 @@ payload. The fix added `deleted_at IS NULL` to every get-by-id + nested sub-sele
 This boots the REAL server, hand-builds active + soft-deleted rows across the five
 soft-deletable tables, and drives the live HTTP read paths with a real token. It
 asserts: get-by-id 404s a soft-deleted contact/org, and nested sub-selects
-(org->contacts/opportunities, contact->communications/opportunities/lp_profile)
+(org->contacts/opportunities, contact->communications/opportunities)
 omit soft-deleted children while keeping the live ones. Synthetic only (guardrail #9).
 
 Run: cd backend && python3 test_soft_delete_reads.py
@@ -70,7 +70,7 @@ def seed():
     # organizations: one live, one soft-deleted
     c.execute("INSERT INTO organizations (id,name) VALUES ('orgA','Harbor & Vine')")
     c.execute("INSERT INTO organizations (id,name,deleted_at) VALUES ('orgX','Deleted Org',?)", (DEL,))
-    # contacts under orgA: one live (with children), one soft-deleted, one live w/ deleted lp
+    # contacts under orgA: one live (with children), one soft-deleted, one extra live (for org aggregates)
     c.execute("INSERT INTO contacts (id,first_name,last_name,organization_id) VALUES ('cLive','Ada','Live','orgA')")
     c.execute("INSERT INTO contacts (id,first_name,last_name,organization_id,deleted_at) VALUES ('cDead','Boris','Gone','orgA',?)", (DEL,))
     c.execute("INSERT INTO contacts (id,first_name,last_name,organization_id) VALUES ('cLp','Cora','Lp','orgA')")
@@ -83,9 +83,6 @@ def seed():
     # communications on cLive
     c.execute("INSERT INTO communications (id,contact_id,communication_date,created_by,subject) VALUES ('cmLive','cLive','2026-05-01','u1','Live note')")
     c.execute("INSERT INTO communications (id,contact_id,communication_date,created_by,subject,deleted_at) VALUES ('cmDead','cLive','2026-05-02','u1','Dead note',?)", (DEL,))
-    # lp_profiles: live one on cLive, soft-deleted one on cLp
-    c.execute("INSERT INTO lp_profiles (id,contact_id,fund_name) VALUES ('lpLive','cLive','Fund III')")
-    c.execute("INSERT INTO lp_profiles (id,contact_id,fund_name,deleted_at) VALUES ('lpDead','cLp','Fund III',?)", (DEL,))
     c.commit()
     c.close()
 
@@ -115,11 +112,6 @@ def main():
         opp_ids = {x["id"] for x in d.get("opportunities", [])}
         check("cmLive" in comm_ids and "cmDead" not in comm_ids, f"communications: live only (got {comm_ids})")
         check("opLive" in opp_ids and "opDead" not in opp_ids, f"opportunities: live only (got {opp_ids})")
-        check(bool(d.get("lp_profile")) and d["lp_profile"].get("id") == "lpLive", "live lp_profile present on contact")
-
-        # soft-deleted lp_profile must read back as None (nested single-row sub-select)
-        _, lpc = _get(port, "/api/contacts/cLp", token)
-        check((lpc or {}).get("data", {}).get("lp_profile") is None, "soft-deleted lp_profile reads back as None")
 
         # ── organization detail nested sub-selects exclude soft-deleted children ──
         print("\n[organization detail nested sub-selects]")