feat(core): implement account switching and align liquidity definitions

feat(liquidity): implement liquidity logic & fix terminology (ref #5)

docs(launch): link to introduction presentation

docs(code): update component structure documentation

chore(funding): Create FUNDING.yml

docs: add usage examples and clarify annotation requirements

docs(identity): refresh launch materials index (Ticket #5)

docs(identity): add Elan introduction essay (Ticket #5)

docs(identity): refine Élan definition with origin story (Ticket #5)

docs(identity): establish Élan identity and project scope (Ticket #5)

refactor(docs): update all leftover 80-ci-cd references to 80-automation

refactor(automation): rename 80-ci-cd to 80-automation and standardize governance

feat(ai): implement ai governance oracle prototype

feat(analytical): implement impact analysis engine

feat(reports): add jinja2 templates for automated reporting