docs: examples for every hard requirement + mort migration blueprint

Phase 7: nine runnable examples/ programs (parse, failover chains with
trailing alias, tiers, LLM_* env providers, multimodal, tool loop,
Generate[T], agent, skills); docs/mort-migration.md mapping mort's
go-llm/go-agentkit usage onto majordomo APIs with the planned additive
library extensions and conversion order; README finalized with the
complete matrix.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

README.md

@@ -5,10 +5,10 @@ over many model providers, a parseable model naming / failover / tiering
 system with built-in health tracking, capability-aware multimodality, tool
 calls, structured output, and composable agents and skills.
 
-> **Status:** under construction, phase by phase. The
-> [support matrix](#featureprovider-support-matrix) below is kept honest:
-> *pending* means not built yet, and this README is updated in the same
-> commit as the behavior it describes.
+> The [support matrix](#featureprovider-support-matrix) below is kept
+> honest: *pending* means not built, and this README is updated in the
+> same commit as the behavior it describes. Runnable programs for every
+> feature live in [examples/](examples/README.md).
 
 ## Install
 
@@ -300,4 +300,5 @@ read `.env` (see `.env.example`; never commit `.env`).
 
 Design decisions are recorded in [docs/adr/](docs/adr/README.md);
 conventions in [CLAUDE.md](CLAUDE.md); build history in
-[progress.md](progress.md).
+[progress.md](progress.md); the mort conversion plan in
+[docs/mort-migration.md](docs/mort-migration.md).