docs(reference): import Dune: Awakening server-manager references

Phase 2 references for the host-agent Dune adapter, moved out of volatile /tmp
into docs/reference-repos/ (per Commander). Three upstream projects, .git +
node_modules + compiled binaries stripped (16MB source). Nested AI-instruction
files (.claude/, CLAUDE.md) removed so they don't pollute Corrosion sessions.

- icehunter/    dune-admin (Go+React) — 4 control planes; SETUP_DOCKER.md is the
                closest analog to our agent's Dune docker control plane (compose
                lifecycle, docker logs, RabbitMQ-via-exec, dune Postgres schema)
- adainrivers/  Rust/Tauri desktop — SSH+k8s BattleGroup control, maintenance
                daemon, in-game admin console (Rust idiom reference)
- the4rchangel/ Node web UI replacing battlegroup.bat — matches the Commander's
                Hyper-V self-host path + game-config schema

See docs/reference-repos/README.md for the full index + how we use each.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docs/reference-repos/icehunter/db-routines/functions/takeover/load_takeoverable_user_ids__0args.sql

@@ -0,0 +1,13 @@
+-- load_takeoverable_user_ids() -> SETOF dune.takeovercharacterdatacomposite
+-- oid: 58463  kind: FUNCTION  category: takeover
+
+CREATE OR REPLACE FUNCTION dune.load_takeoverable_user_ids()
+ RETURNS SETOF dune.takeovercharacterdatacomposite
+ LANGUAGE plpgsql
+AS $function$
+BEGIN
+    RETURN QUERY
+	SELECT acc.user, ps.character_name
+	FROM accounts acc LEFT JOIN player_state ps ON acc.id=ps.account_id
+	WHERE acc.takeoverable=true;
+END; $function$

docs/reference-repos/icehunter/db-routines/functions/takeover/set_account_as_takeoverable__2args.sql

@@ -0,0 +1,10 @@
+-- set_account_as_takeoverable(in_user_id text, in_new_user_id text) -> void
+-- oid: 58587  kind: FUNCTION  category: takeover
+
+CREATE OR REPLACE FUNCTION dune.set_account_as_takeoverable(in_user_id text, in_new_user_id text)
+ RETURNS void
+ LANGUAGE plpgsql
+AS $function$
+BEGIN
+    UPDATE accounts SET "user"=in_new_user_id, takeoverable=TRUE WHERE "user"=in_user_id;
+END; $function$

docs/reference-repos/icehunter/db-routines/functions/takeover/takeover_account__2args.sql

@@ -0,0 +1,26 @@
+-- takeover_account(in_user_to_takeover text, in_current_user text) -> void
+-- oid: 58601  kind: FUNCTION  category: takeover
+
+CREATE OR REPLACE FUNCTION dune.takeover_account(in_user_to_takeover text, in_current_user text)
+ RETURNS void
+ LANGUAGE plpgsql
+AS $function$
+DECLARE
+	current_funcom_id ByteA;
+	current_account_id BigInt;
+
+	takeover_funcom_id ByteA;
+	takeover_account_id BigInt;
+BEGIN
+	select "encrypted_funcom_id", "id" into current_funcom_id, current_account_id
+		from encrypted_accounts WHERE "user"=in_current_user;
+
+	select "encrypted_funcom_id", "id" into takeover_funcom_id, takeover_account_id
+		from encrypted_accounts WHERE "user"=in_user_to_takeover;
+
+	-- Account swap
+	UPDATE encrypted_accounts SET "user"=in_current_user || 'TempTakeover' WHERE "id"=current_account_id;
+	UPDATE encrypted_accounts SET "user"=in_current_user, "encrypted_funcom_id"=current_funcom_id WHERE "id"=takeover_account_id;
+	UPDATE encrypted_accounts SET "user"=in_user_to_takeover, "encrypted_funcom_id"=takeover_funcom_id WHERE "id"=current_account_id;
+END
+$function$