streamline dev setup and docker images

- Rewrite setup.sh: auto-installs Docker, downloads regtest snapshot,
  pulls images, starts all services. Idempotent, works on fresh Ubuntu/macOS.
- Create coinos-base image (196MB) shared by all containers: bitcoin,
  elements, lightning, strfry, kvrocks, electrs, tigerbeetle, chopsticks.
  Total pull ~490MB, down from ~4.3GB.
- Move all images to ghcr.io/coinos/* namespace.
- Drop nutshell (mint/wallet), postgres, mon from default dev compose.
- Comment out ark stack (optional), guard ark.ts against empty config.
- Add missing sampledata: lightningc, strfry, kvrocks, valkey configs.
- Strip strfry binary (145MB debug symbols removed).
- Use single CLN version (v25.12.1) for all 3 lightning nodes.
- Switch valkey to alpine variant (110MB → 41MB).
- Update config.ts.sample with correct service URLs.
- Regtest snapshot hosted on GitHub Releases (~2MB).

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

4 files changed, 172 insertions, 0 deletions

diff --git a/sampledata/archive-kv/kvrocks.conf b/sampledata/archive-kv/kvrocks.conf
new file mode 100644
index 00000000..0a75a51e
--- /dev/null
+++ b/sampledata/archive-kv/kvrocks.conf
@@ -0,0 +1,12 @@
+bind 0.0.0.0
+port 6379
+workers 4
+dir /data
+
+# Low memory footprint for archival workload
+rocksdb.block_cache_size 256
+rocksdb.compression zstd
+rocksdb.wal_size_limit_mb 256
+
+# Log to stdout for Docker
+log-dir stdout
diff --git a/sampledata/db/valkey.conf b/sampledata/db/valkey.conf
new file mode 100644
index 00000000..712c2e63
--- /dev/null
+++ b/sampledata/db/valkey.conf
@@ -0,0 +1,5 @@
+dir /data
+loglevel warning
+save ""
+appendonly yes
+appendfsync everysec
diff --git a/sampledata/lightningc/config b/sampledata/lightningc/config
new file mode 100644
index 00000000..3ec7d15f
--- /dev/null
+++ b/sampledata/lightningc/config
@@ -0,0 +1,11 @@
+alias=coinos
+rgb=006000
+bitcoin-rpcconnect=bc
+bitcoin-rpcport=18443
+bitcoin-rpcuser=admin1
+bitcoin-rpcpassword=123
+network=regtest
+addr=clc:9735
+clnrest-port=3010
+clnrest-protocol=http
+clnrest-host=0.0.0.0
diff --git a/sampledata/strfry/strfry.conf b/sampledata/strfry/strfry.conf
new file mode 100644
index 00000000..a14d8444
--- /dev/null
+++ b/sampledata/strfry/strfry.conf
@@ -0,0 +1,144 @@
+##
+## Default strfry config
+##
+
+# Directory that contains the strfry LMDB database (restart required)
+db = "./strfry-db/"
+
+dbParams {
+    # Maximum number of threads/processes that can simultaneously have LMDB transactions open (restart required)
+    maxreaders = 256
+
+    # Size of mmap() to use when loading LMDB (default is 10TB, does *not* correspond to disk-space used) (restart required)
+    mapsize = 10995116277760
+
+    # Disables read-ahead when accessing the LMDB mapping. Reduces IO activity when DB size is larger than RAM. (restart required)
+    noReadAhead = false
+}
+
+events {
+    # Maximum size of normalised JSON, in bytes
+    maxEventSize = 1000000
+
+    # Events newer than this will be rejected
+    rejectEventsNewerThanSeconds = 900
+
+    # Events older than this will be rejected
+    rejectEventsOlderThanSeconds = 94608000
+
+    # Ephemeral events older than this will be rejected
+    rejectEphemeralEventsOlderThanSeconds = 60
+
+    # Ephemeral events will be deleted from the DB when older than this
+    ephemeralEventsLifetimeSeconds = 300
+
+    # Maximum number of tags allowed
+    maxNumTags = 2000
+
+    # Maximum size for tag values, in bytes
+    maxTagValSize = 1024
+}
+
+relay {
+    # Interface to listen on. Use 0.0.0.0 to listen on all interfaces (restart required)
+    bind = "0.0.0.0"
+
+    # Port to open for the nostr websocket protocol (restart required)
+    port = 7777
+
+    # Set OS-limit on maximum number of open files/sockets (if 0, don't attempt to set) (restart required)
+    nofiles = 0
+
+    # HTTP header that contains the client's real IP, before reverse proxying (ie x-real-ip) (MUST be all lower-case)
+    realIpHeader = ""
+
+    info {
+        # NIP-11: Name of this server. Short/descriptive (< 30 characters)
+        name = "coinos relay"
+
+        # NIP-11: Detailed information about relay, free-form
+        description = "coinos dev relay"
+
+        # NIP-11: Administrative nostr pubkey, for contact purposes
+        pubkey = ""
+
+        # NIP-11: Alternative administrative contact (email, website, etc)
+        contact = ""
+
+        # NIP-11: URL pointing to an image to be used as an icon for the relay
+        icon = ""
+
+        # List of supported lists as JSON array, or empty string to use default. Example: "[1,2]"
+        nips = ""
+    }
+
+    # Maximum accepted incoming websocket frame size (should be larger than max event) (restart required)
+    maxWebsocketPayloadSize = 131072
+
+    # Websocket-level PING message frequency (should be less than any reverse proxy idle timeouts) (restart required)
+    autoPingSeconds = 55
+
+    # If TCP keep-alive should be enabled (detect dropped connections to upstream reverse proxy)
+    enableTcpKeepalive = false
+
+    # How much uninterrupted CPU time a REQ query should get during its DB scan
+    queryTimesliceBudgetMicroseconds = 10000
+
+    # Maximum records that can be returned per filter
+    maxFilterLimit = 500
+
+    # Maximum number of subscriptions (concurrent REQs) a connection can have open at any time
+    maxSubsPerConnection = 20
+
+    writePolicy {
+        # If non-empty, path to an executable script that implements the writePolicy plugin logic
+        plugin = ""
+    }
+
+    compression {
+        # Use permessage-deflate compression if supported by client. Reduces bandwidth, but slight increase in CPU (restart required)
+        enabled = true
+
+        # Maintain a sliding window buffer for each connection. Improves compression, but uses more memory (restart required)
+        slidingWindow = true
+    }
+
+    logging {
+        # Dump all incoming messages
+        dumpInAll = false
+
+        # Dump all incoming EVENT messages
+        dumpInEvents = false
+
+        # Dump all incoming REQ/CLOSE messages
+        dumpInReqs = false
+
+        # Log performance metrics for initial REQ database scans
+        dbScanPerf = false
+
+        # Log reason for invalid event rejection? Can be disabled to silence excessive logging
+        invalidEvents = true
+    }
+
+    numThreads {
+        # Ingester threads: route incoming requests, validate events/sigs (restart required)
+        ingester = 3
+
+        # reqWorker threads: Handle initial DB scan for events (restart required)
+        reqWorker = 3
+
+        # reqMonitor threads: Handle filtering of new events (restart required)
+        reqMonitor = 3
+
+        # negentropy threads: Handle negentropy protocol messages (restart required)
+        negentropy = 2
+    }
+
+    negentropy {
+        # Support negentropy protocol messages
+        enabled = true
+
+        # Maximum records that sync will process before returning an error
+        maxSyncEvents = 1000000
+    }
+}