(a) What (i) risk assessment and (ii) mitigation strategies are employed by her department when approving housing projects in dolomitic areas, considering the real dangers associated with sinkholes, (b) how are the specified measures communicated to the affected communities, (c) what specific regulatory frameworks and building codes does she enforce to ensure that construction practices prioritise the safety of residents and (d) how does her department collaborate with local authorities to enforce and monitor compliance in the high-risk regions?