fix: SPDX headers (AGPL→PMPL), email, author name

- AGPL-3.0-or-later → PMPL-1.0-or-later in SPDX-License-Identifier lines
- jonathan.jewell@open.ac.uk → j.d.a.jewell@open.ac.uk
- "hyperpolymath" → "Jonathan D.A. Jewell" in author fields

Part of global TODO cleanup (2026-03-16).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

CODE_OF_CONDUCT.md

@@ -117,7 +117,7 @@ If you experience or witness unacceptable behaviour, or have any other concerns,
 
 | Method | Details | Best For |
 |--------|---------|----------|
-| **Email** | jonathan.jewell@open.ac.uk | Detailed reports, sensitive matters |
+| **Email** | j.d.a.jewell@open.ac.uk | Detailed reports, sensitive matters |
 | **Private Message** | Contact any maintainer directly | Quick questions, minor issues |
 | **Anonymous Form** | [Link to form if available] | When you need anonymity |
 
@@ -212,7 +212,7 @@ For contributors with elevated access (Perimeter 2 or 1):
 If you believe an enforcement decision was made in error:
 
 1. **Wait 7 days** after the decision (cooling-off period)
-2. **Email** jonathan.jewell@open.ac.uk with subject line "Appeal: [Original Report ID]"
+2. **Email** j.d.a.jewell@open.ac.uk with subject line "Appeal: [Original Report ID]"
 3. **Explain** why you believe the decision should be reconsidered
 4. **Provide** any new information not previously available
 
@@ -292,7 +292,7 @@ We thank these communities for their leadership in creating welcoming spaces.
 If you have questions about this Code of Conduct:
 
 - Open a [Discussion](https://github.com/hyperpolymath/SMTLib.jl/discussions) (for general questions)
-- Email jonathan.jewell@open.ac.uk (for private questions)
+- Email j.d.a.jewell@open.ac.uk (for private questions)
 - Contact any maintainer directly
 
 ---

SECURITY.md

@@ -41,7 +41,7 @@ If you cannot use GitHub Security Advisories, you may email us directly:
 
 | | |
 |---|---|
-| **Email** | jonathan.jewell@open.ac.uk |
+| **Email** | j.d.a.jewell@open.ac.uk |
 ```
 
 > **⚠️ Important:** Do not report security vulnerabilities through public GitHub issues, pull requests, discussions, or social media.
@@ -353,7 +353,7 @@ When using SMTLib.jl, we recommend:
 
 | Purpose | Contact |
 |---------|---------|
-| **Security issues** | [Report via GitHub](https://github.com/hyperpolymath/SMTLib.jl/security/advisories/new) or jonathan.jewell@open.ac.uk |
+| **Security issues** | [Report via GitHub](https://github.com/hyperpolymath/SMTLib.jl/security/advisories/new) or j.d.a.jewell@open.ac.uk |
 | **General questions** | [GitHub Discussions](https://github.com/hyperpolymath/SMTLib.jl/discussions) |
 | **Other enquiries** | See [README](README.md) for contact information |
 

SONNET-TASKS.md

@@ -246,7 +246,7 @@ Dozens of `hyperpolymath`, `SMTLib.jl`, `github.com`, `SMTLib.Jl`,
    - `SMTLib.Jl` -> `SMTLib.jl`
    - `hyperpolymath` -> `hyperpolymath`
    - `SMTLib.jl` -> `SMTLib.jl`
-   - `6759885+hyperpolymath@users.noreply.github.com` -> `jonathan.jewell@open.ac.uk`
+   - `6759885+hyperpolymath@users.noreply.github.com` -> `j.d.a.jewell@open.ac.uk`
    - Remove the template instruction comment block (lines 3-19).
    - Remove PGP sections if not applicable.
 2. In CONTRIBUTING.md: