feature/1214 session fetch refactor (#1215)

* chore(docs): remove token economy guide

* refactor(context): update GatewayContext to use Querier interface

* chore(database): update schema path

* docs: Update READMEs for x/did, x/dwn, and x/svc with UCAN integration

* chore(pkg): update database scope name

* refactor(did): optimize GenesisState proto methods

* refactor(svc): update Service proto to use repeated fields

* refactor(api): rename MsgSpawn to MsgInitialize

internal/database/sink/highway/schema.sql

@@ -98,8 +98,6 @@ CREATE TABLE vaults (
     FOREIGN KEY (session_id) REFERENCES sessions(id)
 );
 
-
-
 -- Indexes for common queries
 CREATE INDEX idx_profiles_handle ON profiles(handle);
 CREATE INDEX idx_profiles_address ON profiles(address);

internal/database/sink/sink.go

@@ -4,5 +4,5 @@ import (
 	_ "embed"
 )
 
-//go:embed schema_vault.sql
+//go:embed vault/schema.sql
 var SchemaVaultSQL string