Merge branch 'master' into start-using-nim-ffi-0-2

Brings the nim-ffi 0.2 CBOR ABI branch up to date with master so it can
be PR'd cleanly:

- Takes #79 (move API module into srcDir so `import sds` resolves for
  nimble consumers) — the only non-conflicting incoming change.
- Resolves the sole conflict in sds.nimble in favour of this branch:
  keep the `nim-ffi#v0.2.0-rc.1` pin / `ffi >= 0.2.0` floor and the
  cbor-serialization requirement. Master's #80 relaxes the floor to
  `>= 0.1.3` for core-only consumers, which is intentionally overridden
  here — adopting the 0.2 CBOR ABI is the whole point of this branch.

Validated: libsds builds clean and `nimble test` is green (bloom,
reliability, persistence, snapshot_codec) on nim 2.2.4.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

config.nims

@@ -1,3 +1,8 @@
+# The package's import root is its srcDir ("sds"), where the API module
+# sds.nim lives. Put it on the path so in-repo consumers (tests/, library/)
+# resolve `import sds` the same way nimble consumers of the package do.
+switch("path", thisDir() & "/sds")
+
 # begin Nimble config (version 2)
 --noNimblePath
 when withDir(thisDir(), system.fileExists("nimble.paths")):

sds.nimble

@@ -19,6 +19,8 @@ requires "results"
 # nim-ffi isn't in the nimble registry, so a plain `nimble` build fetches it by
 # URL. The Nix build pre-populates deps offline (can't clone) and sets
 # SDS_NIX_DEPS to resolve it by name from the installed pkgs2 instead.
+# This branch adopts the nim-ffi 0.2 CBOR ABI, so it pins v0.2.0-rc.1 and
+# overrides master's relaxed >= 0.1.3 floor (which exists for core-only consumers).
 when existsEnv("SDS_NIX_DEPS"):
   requires "ffi >= 0.2.0"
 else:

sds/sds.nim

@@ -1,6 +1,6 @@
 import std/[algorithm, times, tables, sets, options]
 import chronos, results, chronicles
-import sds/[types, protobuf, sds_utils, rolling_bloom_filter]
+import ./[types, protobuf, sds_utils, rolling_bloom_filter]
 
 export types, protobuf, sds_utils, rolling_bloom_filter
 

sds/types.nim

@@ -1,19 +1,19 @@
-import sds/types/sds_message_id
-import sds/types/history_entry
-import sds/types/sds_message
-import sds/types/unacknowledged_message
-import sds/types/incoming_message
-import sds/types/bloom_filter
-import sds/types/rolling_bloom_filter
-import sds/types/reliability_error
-import sds/types/callbacks
-import sds/types/app_callbacks
-import sds/types/reliability_config
-import sds/types/repair_entry
-import sds/types/channel_context
-import sds/types/persistence
-import sds/types/reliability_manager
-import sds/types/protobuf_error
+import ./types/sds_message_id
+import ./types/history_entry
+import ./types/sds_message
+import ./types/unacknowledged_message
+import ./types/incoming_message
+import ./types/bloom_filter
+import ./types/rolling_bloom_filter
+import ./types/reliability_error
+import ./types/callbacks
+import ./types/app_callbacks
+import ./types/reliability_config
+import ./types/repair_entry
+import ./types/channel_context
+import ./types/persistence
+import ./types/reliability_manager
+import ./types/protobuf_error
 
 export
   sds_message_id, history_entry, sds_message, unacknowledged_message, incoming_message,