feat(classification-spine): implement STATE-WP-0065 repo-anchored model

Replace the ad-hoc coordination-domain spine with the Repo Classification
Standard: 14 market domains, classification columns on managed_repos, and
workplans anchored by repo_id (topic_id optional).

- Add Alembic migration d8e9f0a1b2c3 with data backfill and workstream→workplan rename
- Add api/classification.py validation and register-from-classification tooling
- Expose workplan-first REST/MCP surface with legacy workstream aliases
- Add C-24 consistency rule and legacy domain frontmatter mapping
- Update dashboard repos page with category/capability/stake filters
- Update orientation docs; mark STATE-WP-0065 finished

api/schemas/execution.py

@@ -2,7 +2,7 @@ import uuid
 from datetime import datetime
 from typing import Literal
 
-from pydantic import BaseModel, ConfigDict, Field
+from pydantic import AliasChoices, BaseModel, ConfigDict, Field, computed_field
 
 
 ExecutionState = Literal["manual", "queued", "scheduled", "launching", "paused", "completed", "cancelled"]
@@ -21,7 +21,12 @@ class ExecutionIntentUpdate(BaseModel):
 
 
 class ExecutionIntentRead(BaseModel):
-    workstream_id: uuid.UUID
+    workplan_id: uuid.UUID
+
+    @computed_field  # type: ignore[prop-decorator]
+    @property
+    def workstream_id(self) -> uuid.UUID:
+        return self.workplan_id
     execution_state: ExecutionState
     launch_mode: LaunchMode
     concurrency_mode: ConcurrencyMode
@@ -31,7 +36,7 @@ class ExecutionIntentRead(BaseModel):
 
 
 class WorkplanQueueItem(BaseModel):
-    workstream_id: uuid.UUID
+    workplan_id: uuid.UUID
     slug: str
     title: str
     status: str
@@ -45,13 +50,18 @@ class WorkplanQueueItem(BaseModel):
     execution_group: str | None = None
     scheduled_for: datetime | None = None
     eligible: bool
-    blocked_by_workstream_ids: list[uuid.UUID] = Field(default_factory=list)
+    blocked_by_workplan_ids: list[uuid.UUID] = Field(default_factory=list)
+
+    @computed_field  # type: ignore[prop-decorator]
+    @property
+    def blocked_by_workstream_ids(self) -> list[uuid.UUID]:
+        return self.blocked_by_workplan_ids
     blocked_by_task_ids: list[uuid.UUID] = Field(default_factory=list)
     sort_key: list[str | int] = Field(default_factory=list)
 
 
 class LaunchRequestCreate(BaseModel):
-    workstream_id: uuid.UUID
+    workplan_id: uuid.UUID = Field(validation_alias=AliasChoices("workplan_id", "workstream_id"))
     requested_by: str = "dashboard"
     requested_actor: str | None = None
     launch_mode: LaunchMode = "queued"
@@ -67,10 +77,15 @@ class LaunchRequestCreate(BaseModel):
 class LaunchRequestRead(BaseModel):
     model_config = ConfigDict(from_attributes=True)
     id: uuid.UUID
-    workstream_id: uuid.UUID
+    workplan_id: uuid.UUID
     requested_by: str
     requested_actor: str | None = None
     launch_mode: LaunchMode
+
+    @computed_field  # type: ignore[prop-decorator]
+    @property
+    def workstream_id(self) -> uuid.UUID:
+        return self.workplan_id
     concurrency_mode: ConcurrencyMode
     priority: str | None = None
     repo_id: uuid.UUID | None = None