docs(adr): use standard decision-axis status vocabulary

docs/adr/0001-split-read-and-write-runtimes.md

@@ -1,6 +1,6 @@
 # ADR 0001: Split read and write runtimes out of `core`
 
-- **Status:** Completed (all phases done as of 2026-06-13)
+- **Status:** Accepted (all phases done as of 2026-06-13)
 - **Date:** 2026-06-11
 - **Deciders:** project maintainer
 - **Supersedes:** —

docs/adr/0007-pco-encode.md

@@ -1,6 +1,6 @@
 # ADR 0007: Pure-Java `vortex.pco` encoder
 
-- **Status:** Completed (E1-E5, E7-E9 done; E6 partial: IntMult only; FloatMult/FloatQuant deferred as marginal vs. existing Classic+ALP cascade)
+- **Status:** Accepted (E1-E5, E7-E9 done; E6 partial: IntMult only; FloatMult/FloatQuant deferred as marginal vs. existing Classic+ALP cascade)
 - **Date:** 2026-06-13
 - **Deciders:** project maintainer
 - **Supersedes:** —

docs/adr/0009-write-api-ergonomics.md

@@ -1,6 +1,6 @@
 # ADR 0009: Write API ergonomics — DType factories and typed chunk builder
 
-- **Status:** Completed (parts 1-3 shipped 2026-06-14; part 4 split out to ADR 0011)
+- **Status:** Accepted (parts 1-3 shipped 2026-06-14; part 4 split out to ADR 0011)
 - **Date:** 2026-06-13
 - **Deciders:** project maintainer
 - **Supersedes:** —

docs/adr/0010-lazy-decode.md

@@ -1,6 +1,6 @@
 # ADR 0010: Lazy decode for 1:1 transform encodings
 
-- **Status:** Completed
+- **Status:** Accepted
 - **Date:** 2026-06-13
 - **Implemented:** 2026-06-14 — 2026-06-15
 - **Deciders:** project maintainer

docs/adr/0012-zero-copy-layout-decoding.md

@@ -1,6 +1,6 @@
 # ADR 0012: Zero-copy layout decoding — lazy Chunked and Dict arrays
 
-- **Status:** Completed
+- **Status:** Accepted
 - **Date:** 2026-06-14
 - **Implemented:** 2026-06-15 (PRs #38, #39, #42)
 - **Deciders:** project maintainer

docs/adr/0014-variant-encoding-strategy.md

@@ -1,6 +1,6 @@
 # ADR 0014: Variant encoding strategy — chunked constants now, parquet.variant later
 
-- **Status:** Completed
+- **Status:** Accepted
 - **Date:** 2026-06-18
 - **Deciders:** project maintainer
 - **Supersedes:** —

docs/adr/0015-drop-materialized-fallbacks.md

@@ -1,6 +1,6 @@
 # ADR 0015: Drop Materialized fallbacks once Lazy has shipped
 
-- **Status:** Completed
+- **Status:** Accepted
 - **Date:** 2026-06-16
 - **Deciders:** project maintainer
 - **Supersedes:** —

docs/adr/0018-calcite-sql-adapter.md

@@ -1,6 +1,7 @@
 # ADR 0018: Apache Calcite SQL adapter — be a push-down source, not an engine
 
-- **Status:** Proposed
+- **Status:** Accepted — Phases 0–2 (schema/scan, filter + projection push-down, MIN/MAX/COUNT
+  aggregate push-down) implemented in the `calcite/` module; SUM/AVG push-down pending
 - **Date:** 2026-06-24
 - **Deciders:** project maintainer
 - **Supersedes:** —
@@ -98,7 +99,7 @@ Phased productionisation:
   `MIN`/`MAX`/`COUNT` work now; `SUM`/`AVG` need the writer to emit a per-zone `SUM` stat first
   (ADR 0013 §6 — the same increment that also wants `NULL_COUNT`).
 
-### Prototype status (branch `feat/vortex-calcite-demo`)
+### Implementation status (landed in the `calcite/` module)
 
 Phases 0–2 are implemented and tested:
 

docs/adr/ADR.md

@@ -7,27 +7,29 @@ This directory contains ADRs following the
 
 Each ADR is a Markdown file named `NNNN-short-title.md`. Use `template.md` as the starting point.
 
-**Status values:** Proposed → Accepted → Completed | Deferred | Deprecated | Superseded
+**Status values:** Proposed → Accepted → Deprecated | Superseded — or Deferred / Rejected for
+decisions not adopted. Status tracks only the decision; the **Released** column records the version
+the decision shipped in (blank = not yet shipped).
 
 ## Index
 
 | ADR  | Title                                         | Status    | Released |
 |------|-----------------------------------------------|-----------|----------|
-| 0001 | Split read and write runtimes out of core     | Completed | 0.7.0 |
+| 0001 | Split read and write runtimes out of core     | Accepted | 0.7.0 |
 | 0002 | Pluggable DType, Layout, and Compute          | Deferred  |          |
 | 0003 | VortexException sanitization + bounds typing  | Accepted  |          |
 | 0004 | ResourceLimits + ReadOptions                  | Accepted  |          |
 | 0005 | Vector API adoption                           | Deferred  |          |
 | 0006 | Benchmark publishing                          | Accepted  |          |
-| 0007 | Pure-Java vortex.pco encoder                  | Completed   | 0.7.0 |
+| 0007 | Pure-Java vortex.pco encoder                  | Accepted   | 0.7.0 |
 | 0008 | Domain primitives for unsigned integers       | Proposed  |          |
-| 0009 | Write API ergonomics                          | Completed | 0.7.0 |
-| 0010 | Lazy decode                                   | Completed   | 0.7.0 |
+| 0009 | Write API ergonomics                          | Accepted | 0.7.0 |
+| 0010 | Lazy decode                                   | Accepted   | 0.7.0 |
 | 0011 | Writer zero-copy MemorySegment overload       | Deferred  |          |
-| 0012 | Zero-copy layout decoding: lazy Chunked/Dict  | Completed   | 0.7.0 |
+| 0012 | Zero-copy layout decoding: lazy Chunked/Dict  | Accepted   | 0.7.0 |
 | 0013 | Compute primitives: masks, kernels, no-materialise | Proposed  |     |
-| 0014 | Variant encoding: chunked constants now, parquet.variant later | Completed   | 0.8.0 |
-| 0015 | Drop Materialized fallbacks once Lazy has shipped | Completed | 0.8.0 |
+| 0014 | Variant encoding: chunked constants now, parquet.variant later | Accepted   | 0.8.0 |
+| 0015 | Drop Materialized fallbacks once Lazy has shipped | Accepted | 0.8.0 |
 | 0016 | vortex-arrow bridge module for Arrow interop  | Proposed  |          |
 | 0017 | In-house FlatBuffers codegen + MemorySegment runtime | Accepted  |          |
-| 0018 | Apache Calcite SQL adapter — push-down source | Proposed  |          |
+| 0018 | Apache Calcite SQL adapter — push-down source | Accepted  |          |