Release v1.0.0

- All phases complete: REST API, gRPC, admin CLIs, policy engine,
  account tags, Postgres credentials UI, policies UI, client libraries
  (Go, Rust, Common Lisp, Python)
- All tests pass; golangci-lint clean
- make docker now tags mcias:VERSION and mcias:latest

PROGRESS.md

@@ -2,7 +2,7 @@
 
 Source of truth for current development state.
 ---
-All phases complete. Tests: all packages pass `go test ./...`; `golangci-lint run ./...` clean.
+All phases complete. **v1.0.0 tagged.** All packages pass `go test ./...`; `golangci-lint run ./...` clean.
 
 ### 2026-03-11 — Postgres Credentials UI + Policy/Tags UI completion
 
@@ -68,6 +68,12 @@ All phases complete. Tests: all packages pass `go test ./...`; `golangci-lint ru
 
 All tests pass (`go test ./...`); `golangci-lint run ./...` reports 0 issues.
 
+### 2026-03-11 — v1.0.0 release
+
+- `Makefile`: `make docker` now tags image as both `mcias:$(VERSION)` and
+  `mcias:latest` in a single build invocation
+- Tagged `v1.0.0` — first stable release
+
 ---
 - [x] Phase 0: Repository bootstrap (go.mod, .gitignore, docs)
 - [x] Phase 1: Foundational packages (model, config, crypto, db)