refactor(dream): remove hardcoded DEFAULT_DIGEST_DIR and use app_config

reme4/steps/dream/digest_edit.py

@@ -20,7 +20,7 @@ from pathlib import Path
 
 import frontmatter
 
-from .digest_write import DEFAULT_DIGEST_DIR, _validate_digest_path, bucket_names, normalize_buckets
+from .digest_write import _validate_digest_path, bucket_names, normalize_buckets
 from ..file_io._file_io import read_file_safe
 from ..file_io.edit import EditStep
 from ...components import R
@@ -29,12 +29,15 @@ from ...utils.wikilink_handler import WikilinkHandler
 
 @R.register("digest_edit_step")
 class DigestEditStep(EditStep):
-    """EditStep variant that enforces digest path shape + E-1 edge conservation."""
+    """EditStep variant that enforces digest path shape + E-1 edge conservation.
 
-    def __init__(self, buckets=None, digest_dir: str | None = None, **kwargs):
+    ``digest_dir`` is sourced from ``app_context.app_config.digest_dir`` at
+    execute time — same convention as the ``daily_*`` steps.
+    """
+
+    def __init__(self, buckets=None, **kwargs):
         super().__init__(**kwargs)
         self.buckets = normalize_buckets(buckets)
-        self.digest_dir = (digest_dir or "").strip() or DEFAULT_DIGEST_DIR
 
     def _reject(self, message: str, **meta) -> None:
         assert self.context is not None
@@ -48,8 +51,9 @@ class DigestEditStep(EditStep):
         raw = str(self.context.get("path") or "")
         old = self.context.get("old")
         new = self.context.get("new")
+        digest_dir = getattr(self.app_context.app_config, "digest_dir", "")
 
-        err = _validate_digest_path(raw, bucket_names(self.buckets), self.digest_dir)
+        err = _validate_digest_path(raw, bucket_names(self.buckets), digest_dir)
         if err:
             self._reject(err)
             return None

reme4/steps/dream/digest_write.py

@@ -80,17 +80,18 @@ def bucket_names(buckets) -> tuple[str, ...]:
     return tuple(buckets)
 
 
-DEFAULT_DIGEST_DIR: str = "digest"
-
-
 @R.register("digest_write_step")
 class DigestWriteStep(WriteStep):
-    """WriteStep variant that enforces the ``<digest_dir>/<bucket>/<slug>.md`` layout."""
+    """WriteStep variant that enforces the ``<digest_dir>/<bucket>/<slug>.md`` layout.
 
-    def __init__(self, buckets=None, digest_dir: str | None = None, **kwargs):
+    ``digest_dir`` is sourced from ``app_context.app_config.digest_dir`` at
+    execute time — same convention as ``daily_create`` / ``daily_list`` /
+    ``daily_reindex`` for their ``daily_dir``.
+    """
+
+    def __init__(self, buckets=None, **kwargs):
         super().__init__(**kwargs)
         self.buckets = normalize_buckets(buckets)
-        self.digest_dir = (digest_dir or "").strip() or DEFAULT_DIGEST_DIR
 
     def _reject(self, message: str) -> None:
         assert self.context is not None
@@ -100,8 +101,9 @@ class DigestWriteStep(WriteStep):
     async def execute(self):
         assert self.context is not None
         raw = str(self.context.get("path") or "")
+        digest_dir = getattr(self.app_context.app_config, "digest_dir", "")
 
-        err = _validate_digest_path(raw, bucket_names(self.buckets), self.digest_dir)
+        err = _validate_digest_path(raw, bucket_names(self.buckets), digest_dir)
         if err:
             self._reject(err)
             return None

reme4/steps/dream/dreamer.py

@@ -198,14 +198,6 @@ class Dreamer(BaseStep):
         vr = getattr(self.file_store, "vault_path", None)
         return Path(vr).resolve() if vr else Path.cwd().resolve()
 
-    def _digest_dir(self) -> str:
-        """Resolve the configured digest subroot (defaults to ``"digest"``)."""
-        if self.app_context is not None:
-            val = getattr(self.app_context.app_config, "digest_dir", "") or ""
-            if val:
-                return val
-        return "digest"
-
     def _llm_available(self) -> bool:
         try:
             return self.as_llm is not None
@@ -275,13 +267,10 @@ class Dreamer(BaseStep):
     def _make_digest_write_tool(self):
         """Tool closure: wraps :class:`DigestWriteStep` and tracks creates."""
 
-        digest_dir = self._digest_dir()
-
         async def digest_write(path: str, name: str, description: str, content: str) -> ToolResponse:
             step = DigestWriteStep(
                 file_store=self.file_store,
                 buckets=self.buckets,
-                digest_dir=digest_dir,
                 app_context=self.app_context,
             )
             await step(path=path, name=name, description=description, content=content)
@@ -297,13 +286,10 @@ class Dreamer(BaseStep):
     def _make_digest_edit_tool(self):
         """Tool closure: wraps :class:`DigestEditStep` and tracks updates / conservation violations."""
 
-        digest_dir = self._digest_dir()
-
         async def digest_edit(path: str, old: str, new: str) -> ToolResponse:
             step = DigestEditStep(
                 file_store=self.file_store,
                 buckets=self.buckets,
-                digest_dir=digest_dir,
                 app_context=self.app_context,
             )
             await step(path=path, old=old, new=new)
@@ -388,7 +374,7 @@ class Dreamer(BaseStep):
         toolkit = self.toolkit or Toolkit()
         for job_name in _INTEGRATE_READ_TOOLS:
             self.add_as_tool(toolkit, job_name)
-        digest_dir = self._digest_dir()
+        digest_dir = getattr(self.app_context.app_config, "digest_dir", "")
         path_shape = f"'{digest_dir}/<bucket>/<slug>.md'"
         digest_write_desc = (
             "Create a NEW digest node — same shape as the canonical `write` job, plus "
@@ -507,7 +493,7 @@ class Dreamer(BaseStep):
     async def _integrate_unit(self, unit: dict, material_blob: str, hint: str, vault_dir: Path) -> str:
         """One ReAct invocation per memory sub-unit. Returns LLM summary of writes."""
         toolkit = self._build_integrate_toolkit()
-        digest_dir = self._digest_dir()
+        digest_dir = getattr(self.app_context.app_config, "digest_dir", "")
         buckets_block = "\n".join(
             f"  - `{digest_dir}/{b['name']}/`" + (f"  — {b['description']}" if b.get("description") else "")
             for b in self.buckets