Add deterministic incremental adapter assembly

SLICE_HISTORY.md

@@ -1,5 +1,28 @@
 # Completed slices
 
+## DFG-22 deterministic incremental adapter assembly
+
+### Changed
+
+- Added an optional language-neutral assembly contract after incremental source extraction.
+- Kept raw source contributions inside DocForge's existing fingerprint, dependency invalidation,
+  cache, and atomic publication path.
+- Required assembled projections to retain the manifest-bound identity, revision, and source hash.
+- Validated the assembled primary graph and function Logic owners before publication.
+- Preserved the stricter unique-source ownership path for adapters that do not need assembly.
+- Documented assembly for compilers and language tools that repeat shared declarations across
+  extraction units.
+
+### Verification
+
+- The overlap fixture caches two repeated source contributions, publishes one deterministic node,
+  reuses both warm cache entries, reparses one changed source, preserves the selected fact, and
+  passes full/incremental equivalence.
+- Focused adapter and onboarding tests passed 14 tests.
+- Strict Pyright, Ruff lint and formatting, Python compilation, and the HTML/CSS/JavaScript quality
+  gate passed.
+- The complete warning-strict suite passed 82 tests and 2 subtests.
+
 ## DFG-21 language-neutral project onboarding
 
 ### Changed