docs: retire STATUS.md overclaim; drop stray AGPL licence text (#72)

## What

Two documentation/licensing corrections found during a JtV sitrep. **No
functional or proof changes.**

### 1. Remove `STATUS.md`

It claimed **"100% Complete — Production Ready"** and pointed readers at
`README_COMPLETE.md` — **a file that does not exist in the repository**.

It also directly contradicted `STATUS.adoc`, which reports the accurate
position: Alpha, self-graded B-, "verification chain still incomplete",
8 enumerated gaps.

This is not a new discovery by me — the repo already knew:

- `ROADMAP.adoc` flags that "some documentation overstates
implementation completeness (being corrected)".
- `ALIGNMENT-AFFINESCRIPT.adoc:79` names it: *"**The main gap.**
`STATUS.md` claims '100% Complete – Production Ready'"*.
- The file itself was headed `⚠️ THIS FILE IS DEPRECATED`.

Removing rather than editing, so `STATUS.adoc` is unambiguously
canonical. `CLAUDE.md`'s must-read list is repointed to `STATUS.adoc` so
agent navigation doesn't break.

### 2. Remove `LICENSES/AGPL-3.0-or-later.txt`

Introduced by an estate sweep (`sweep3: add license files and SPDX
identifiers`). It is unused and contradicts declared policy:

- `Cargo.toml` → `license = "MPL-2.0"`
- `LICENSING.md` documents the canonical MPL-2.0 (code) / CC-BY-SA-4.0
(prose) pair
- **Zero** files in the repo declare AGPL
- `.machine_readable/6a2/AGENTIC.a2ml` states verbatim: `"no AGPL (JtV
code is MPL-2.0, docs CC-BY-SA-4.0)"`

To be explicit: this is a **stray licence text file, not a mis-stamp**.
No source file's licence changed, and no licence body was clobbered.

## Verification

- `grep -rIn "STATUS\.md"` — remaining hits are `CHANGELOG.adoc`
(historical entry, correctly left alone) and
`ALIGNMENT-AFFINESCRIPT.adoc` (prose analysing this very defect). The
only *live pointer*, in `CLAUDE.md`, is updated.
- `grep -rIn "AGPL-3.0-or-later.txt"` — no references.
- No `.rs`, `.lean`, `.idr`, workflow, or manifest file touched.

Context: `dev-notes/jtv-sitrep-2026-07-27.md`.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

Author: hyperpolymath

CLAUDE.md

@@ -76,7 +76,7 @@ Specification in `docs/`:
 Must-read files for context:
 
 - `README_JTV.md` - Main project README
-- `STATUS.md` - Current implementation status
+- `STATUS.adoc` - Current implementation status (canonical)
 - `docs/GRAMMAR_EVOLUTION.md` - v1 vs v2 separation rationale
 - `docs/QUANTUM_VISION.md` - Quantum computing abstraction
 - `Justfile` - Build system (NOT Makefile)