chore: fill or remove RSR template placeholders (#53)

`openssf-compliance.yml` fails when any of the thirteen files it checks
still contains a `{{PLACEHOLDER}}` token. This clears them, with no
invention.

- **Deleted** the `TEMPLATE INSTRUCTIONS (delete this block before
publishing)` comment — the template says to delete it, and it is where
every legend line lived, so a large share of the reported tokens were
the file documenting its own placeholders.
- **Filled** what the repository itself supplies: owner and repo from
the git remote, project name, year, forge, main branch, contact email.
- **Removed** PGP and website lines. `https://github.com/<user>.gpg`
returns HTTP 200 for every account; with no key uploaded the body is a
stub reading *"This user hasn't uploaded any GPG keys"*. No key is
published for either account, and commit signing here is SSH —
unrelated. The template sanctions this: *"Optional: Remove sections that
don't apply (e.g. PGP if you don't use it)."*\n\nA security policy
telling a researcher to encrypt to a key that does not exist is worse
than one that does not mention encryption.\n\n**Where applicable, this
also fixes a misrouted advisory URL.** A previous `just init` copied
already-filled templates out of `squisher-corpus`, so 51 repositories
directed vulnerability reports to `hyperpolymath/squisher-corpus` — a
repository unrelated to the code being reported, meaning the affected
maintainer never saw them. Repointed from this repository's own git
remote.

---------

Signed-off-by: Jonathan D.A. Jewell <6759885+hyperpolymath@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Mistral Vibe <vibe@mistral.ai>

Author: 3 people

.editorconfig

@@ -63,3 +63,6 @@ indent_size = 2
 indent_style = space
 indent_size = 4
 
+[justfile]
+indent_style = space
+indent_size = 4

.gitattributes

@@ -16,7 +16,6 @@
 *.hs    text eol=lf
 *.chpl  text eol=lf
 *.scm   text eol=lf
-*.a2ml  text eol=lf linguist-language=TOML
 *.ncl   text eol=lf
 *.nix   text eol=lf
 
@@ -34,7 +33,7 @@
 # Config
 .gitignore     text eol=lf
 .gitattributes text eol=lf
-Justfile       text eol=lf
+justfile       text eol=lf
 Makefile       text eol=lf
 Containerfile  text eol=lf
 

.github/GOVERNANCE.md

@@ -4,24 +4,6 @@ Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Security Policy
 
-<!-- 
-============================================================================
-TEMPLATE INSTRUCTIONS (delete this block before publishing)
-============================================================================
-Replace all {{PLACEHOLDER}} values with your information:
-  Proof Burrower     - Your project name
-  hyperpolymath            - GitHub username or org (e.g., hyperpolymath)
-  proof-burrower             - Repository name
-  j.d.a.jewell@open.ac.uk   - Security contact email
-  {{PGP_FINGERPRINT}}  - Your PGP key fingerprint (40 chars, no spaces)
-  {{PGP_KEY_URL}}      - URL to your public PGP key
-  https://github.com/hyperpolymath/proof-burrower          - Your website/domain
-  2026     - Current year for copyright
-
-Optional: Remove sections that don't apply (e.g., PGP if you don't use it)
-============================================================================
--->
-
 We take security seriously. We appreciate your efforts to responsibly disclose vulnerabilities and will make every effort to acknowledge your contributions.
 
 ## Table of Contents
@@ -63,19 +45,7 @@ If you cannot use GitHub Security Advisories, you may email us directly:
 | | |
 |---|---|
 | **Email** | j.d.a.jewell@open.ac.uk |
-| **PGP Key** | [Download Public Key]({{PGP_KEY_URL}}) |
-| **Fingerprint** | `{{PGP_FINGERPRINT}}` |
-
-```bash
-# Import our PGP key
-curl -sSL {{PGP_KEY_URL}} | gpg --import
 
-# Verify fingerprint
-gpg --fingerprint j.d.a.jewell@open.ac.uk
-
-# Encrypt your report
-gpg --armor --encrypt --recipient j.d.a.jewell@open.ac.uk report.txt
-```
 
 > **⚠️ Important:** Do not report security vulnerabilities through public GitHub issues, pull requests, discussions, or social media.
 
@@ -374,7 +344,6 @@ When using Proof Burrower, we recommend:
 
 ## Additional Resources
 
-- [Our PGP Public Key]({{PGP_KEY_URL}})
 - [Security Advisories](https://github.com/hyperpolymath/proof-burrower/security/advisories)
 - [Changelog](CHANGELOG.md)
 - [Contributing Guidelines](CONTRIBUTING.md)

.github/SECURITY.md

@@ -11,6 +11,7 @@ on:
     branches: [main, master]
   workflow_dispatch:
 permissions:
+  actions: read
   contents: read
 jobs:
   trigger-boj:

.github/workflows/boj-build.yml

@@ -15,6 +15,7 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 permissions:
+  actions: read
   contents: read
 jobs:
   analyze:

.github/workflows/codeql.yml

@@ -39,6 +39,7 @@ on:
   pull_request:
     types: [opened, reopened, synchronize]
 permissions:
+  actions: read
   contents: write # needed to enable auto-merge
   pull-requests: write # needed to approve
   # NB: keep narrow — do NOT add secrets: read or id-token: write here.

.github/workflows/dependabot-automerge.yml

@@ -13,6 +13,7 @@ on:
     branches: [main, master]
 
 permissions:
+  actions: read
   contents: read
 
 jobs:

.github/workflows/dogfood-gate.yml

@@ -9,6 +9,7 @@ on:
   workflow_dispatch:
 
 permissions:
+  actions: read
   contents: read
 
 jobs:

.github/workflows/governance.yml

@@ -11,6 +11,7 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 permissions:
+  actions: read
   contents: read
 jobs:
   check: