security: remove all infrastructure and internal process material from the repo

The repo is source code and guidelines only. Nothing about how Archipelago's
own fleet is run, or how the team works, stays in it.

Untracked (kept on disk, gitignored) — 250 files:
- .planning/ (199) and loop/ — internal development process
- fleet operations tooling that targets specific nodes: deploy-to-target,
  deploy-tailscale, deploy-config-defaults, setup-target-dev, setup-aiui-server,
  setup-https-dev, debug-frontend, node-profile, fleet-fips-pair/unpair,
  image-recipe/sync-from-live.sh
- image-recipe/INTEGRATION-GUIDE.md and docs/multinode-testing-plan.md, both of
  which are live-server workflow and fleet node inventories
- the Phase 10 on-node verification and evidence records, which cite .planning/
  as their evidence base

KEY-05-ENTROPY-ENFORCEMENT.md was initially moved out with the other Phase 10
docs and then put back: it is cited as normative rationale from ten places in
the codebase, including core/clippy.toml, which bans rand::thread_rng and
points at it for the reason. That makes it a guideline, not an internal record.

Node names removed from source (48 occurrences across comments, manifests and
test fixtures): archi-dev-box, archy-x250*, shorty-s, framework-pt,
zaza-optiplex, archi-thinkpad. Comments keep the engineering context and the
date, which is what carried the meaning; the machine name did not.

Three of those were live test values rather than comments and were replaced
with valid stand-ins, not prose: two mDNS hostnames and a mesh peer name.
An earlier pass substituted "a test node" into a hostname assertion, producing
an invalid hostname; caught and fixed as test-node.local.

Wipe mechanism: .local-only/manifest.txt inventories every local-only path and
.local-only/wipe.sh deletes them on one confirmation, refusing to touch
anything git still tracks. Both are themselves untracked, so the public repo
does not carry a map of internal filenames.

Verified: cargo check -p archipelago --all-features clean; archipelago-container
75/75 tests pass; appOrigin vitest 7/7; audit-secrets 5/5; every relative link
in tracked markdown resolves (0 broken).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

core/archipelago/src/api/rpc/middleware.rs

@@ -81,7 +81,7 @@ pub(super) fn sanitize_error_message(msg: &str) -> String {
         "Insufficient funds",
         // On-chain send/sweep refusals from LND ("Failed to send: your
         // on-chain balance is too small or still unconfirmed to sweep…").
-        // Masking sent the operator to journalctl again (framework-pt
+        // Masking sent the operator to journalctl again (a test node
         // sweep, 2026-08-06) — same lesson as the two above.
         "Failed to send",
         // A frontend newer than the daemon calls methods it doesn't have.
@@ -201,7 +201,7 @@ mod sanitize_tests {
     fn lightning_payment_errors_pass_through() {
         // LND's payment-failure reasons are written for the payer — masking
         // "invoice expired" as "Check server logs" left a user retrying a
-        // dead invoice (framework-pt, 2026-07-23).
+        // dead invoice (a test node, 2026-07-23).
         for msg in [
             "Payment failed: this invoice has expired (Valid until 2026-07-23 07:41:42 +0000 UTC). Ask the recipient for a fresh invoice and try again.",
             "Payment failed: unable to find a path to destination",