Bring main onto the line this project actually ships

main had drifted to a history with no ancestor in common with the tree we
build and deploy. It sat at be63e83 (2026-08-09) with 28 commits; the shipped
line, deploy/soak-2026-08-21, had 383. The two shared nothing -- git
merge-base returns no result at all -- so anyone cloning this repository
landed on a default branch that was neither current nor related to the
running node.

The 28 commits on main were audited before this merge: every one is already
present in the tree by content, including the two that are hardest to see
because they were rewritten afterwards -- the payout reorg-safety work
(PayoutBlockStillOnChain, since evolved to re-check on every retry rather
than once at maturity) and the nostr relay certificate verification
(SSL_set1_host, now with a Windows root-store path). Nothing on main is lost
by this merge.

Recorded as a merge rather than a force-push: main only ever moves forward,
its old history stays reachable as the first parent, and this is revertible.
The tree is taken wholesale from the merged branch, so main's content is now
exactly what was built and tested.

What this brings onto main:

- compactblock: BIP152-style compact block relay ported from upstream 1.2.23,
  primitives and unit test only, with the RAND_bytes failure path closed and
  the reconstruction allocation bounded.
- upstream/main 17741d9: isolated testnet parameters and genesis, optional
  2 MB large pages for RandomX. Mainnet genesis verified byte-identical
  through upstream's BuildGenesisBlock() refactor.
- deploy: every image built on bookworm so binaries run on Debian 12, and the
  container build now honours the RandomX and libsecp256k1 pins it had been
  silently ignoring since before 1.2.15.

Gates at this tree: 15/15 selftests, compactblock's 17 checks, consensus
constants unchanged against e4f898c apart from the pre-existing
MAX_BLOCK_SIZE_GEN, mainnet genesis intact, money-log check ok.

1 files changed, 61 insertions, 0 deletions

diff --git a/docs/pool-directory.md b/docs/pool-directory.md
new file mode 100644
index 0000000..ff0640a
--- /dev/null
+++ b/docs/pool-directory.md
@@ -0,0 +1,61 @@
+# Public Pool Directory
+
+`pool.bitflash.network` should be a public directory, not a network dependency.
+Nodes discover pools through Nostr and `.btf`; the website only helps humans
+compare operators.
+
+Operators can publish the `pool_status.json` and `pool_rounds.json` files
+produced by:
+
+```bash
+bitflash -nogui -gen -operator \
+  -poolstatusfile=/var/www/pool_status.json \
+  -poolroundsfile=/var/www/pool_rounds.json
+```
+
+Build a static directory from one or more status files:
+
+```bash
+python3 scripts/build-pool-index.py --out-dir public/pool \
+  https://operator-one.example/pool_status.json \
+  https://operator-two.example/pool_status.json
+```
+
+The generated output contains:
+
+- `index.html`: human-readable ranking page.
+- `pools.json`: machine-readable API for `api.bitflash.network/pools.json`.
+
+The website is a convenience layer, not a consensus or discovery dependency.
+Nodes discover pools through Nostr descriptors and `.btf`; a missing website
+must not stop mining or pool operation.
+
+When a source is an HTTP(S) `pool_status.json`, the directory links to a
+`pool_rounds.json` proof file next to it. That file records the block height,
+block hash, coinbase txid, coinbase value, pool fee, total shares, per-address
+share counts, computed payouts, and payout txids once paid.
+
+Ranking order is intentionally simple:
+
+1. online pools first;
+2. higher reported hashrate;
+3. more authorized miners;
+4. lower fee;
+5. name as a stable tie-breaker.
+
+An entry is considered online when the source says the pool is running and its
+status file is no more than 120 seconds old.
+
+## Recommended Hostnames
+
+Use:
+
+```text
+pool.bitflash.network        human-readable pool directory
+api.bitflash.network/pools.json
+status.bitflash.network      relay/node health, not pool ranking
+docs.bitflash.network        operator setup guide
+```
+
+The GUI may use the API as a shortcut for humans, but it should keep the
+existing decentralized pool discovery path as the source of truth.