Rename neural experiments to descriptive paths (drop N* codes)

configs/neural/{N0,N1,N2,N5}.yaml -> {bridge,collapse,grounding,architectures}.yaml,
results dirs likewise. Updated experiment/output.dir fields, comments/docstrings, and
docs; regenerated the four result manifests (now carrying the real git commit). No
functional path resolution referenced the codes (the Makefile globs configs/neural/*.yaml
and tests use inline configs), so nothing breaks. 92 tests green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

results/N0/manifest.json

@@ -1,16 +0,0 @@
-{
-  "experiment": "N0_bridge_histogram",
-  "master_seed": 20260704,
-  "git_commit": null,
-  "python": "3.14.5",
-  "libraries": {
-    "numpy": "2.5.0",
-    "scipy": "1.18.0",
-    "pandas": "3.0.3",
-    "pyarrow": "24.0.0"
-  },
-  "rows": 96480,
-  "results_sha256": "445fd5165fc69edbca87f79c0cf669b5879025637f4d36ddc769e940fb02f114",
-  "layer": "1.5",
-  "model_kind": "histogram"
-}

results/architectures/manifest.json

@@ -1,7 +1,7 @@
 {
-  "experiment": "N5_architecture_generality",
+  "experiment": "architecture_generality",
   "master_seed": 20260704,
-  "git_commit": null,
+  "git_commit": "840b6b00b35ea3f69ef7e0f531914986f88d74a5",
   "python": "3.14.5",
   "libraries": {
     "numpy": "2.5.0",
@@ -11,7 +11,7 @@
     "torch": "2.12.1"
   },
   "rows": 690,
-  "results_sha256": "4e8d7931e791493aa35ea7b114d81b90a3a58eabd92d8b1dbd87cf0a9e200ba1",
+  "results_sha256": "8f44a15e66c638fc0c717dab9b9d3feedad1cb4cee1890159a325f884677b32e",
   "layer": "1.5",
   "model_kind": "rnn"
 }

results/architectures/resolved_config.yaml

@@ -1,8 +1,8 @@
-experiment: N5_architecture_generality
+experiment: architecture_generality
 seed: 20260704
 n_replicates: 5
 source_config:
-  experiment: N5_architecture_generality
+  experiment: architecture_generality
   kind: gen_lineage
   seed: 20260704
   n_replicates: 5
@@ -49,7 +49,7 @@ source_config:
     - 0.0
     - 0.05
   output:
-    dir: results/N5
+    dir: results/architectures
 grid:
 - label:
     kind: histogram

results/bridge/manifest.json

@@ -0,0 +1,17 @@
+{
+  "experiment": "bridge_histogram",
+  "master_seed": 20260704,
+  "git_commit": "840b6b00b35ea3f69ef7e0f531914986f88d74a5",
+  "python": "3.14.5",
+  "libraries": {
+    "numpy": "2.5.0",
+    "scipy": "1.18.0",
+    "pandas": "3.0.3",
+    "pyarrow": "24.0.0",
+    "torch": "2.12.1"
+  },
+  "rows": 96480,
+  "results_sha256": "c4e96e1e0ff01b103624a2ca6ac7508d4482df79224336f6a76debab3f93428c",
+  "layer": "1.5",
+  "model_kind": "histogram"
+}

results/bridge/resolved_config.yaml

@@ -1,8 +1,8 @@
-experiment: N0_bridge_histogram
+experiment: bridge_histogram
 seed: 20260704
 n_replicates: 60
 source_config:
-  experiment: N0_bridge_histogram
+  experiment: bridge_histogram
   kind: gen_lineage
   seed: 20260704
   n_replicates: 60
@@ -44,7 +44,7 @@ source_config:
     - 0.2
     - 0.4
   output:
-    dir: results/N0
+    dir: results/bridge
 grid:
 - label:
     g: 0.0

results/collapse/manifest.json

@@ -1,7 +1,7 @@
 {
-  "experiment": "N1_collapse_in_weights",
+  "experiment": "collapse_in_weights",
   "master_seed": 20260704,
-  "git_commit": null,
+  "git_commit": "840b6b00b35ea3f69ef7e0f531914986f88d74a5",
   "python": "3.14.5",
   "libraries": {
     "numpy": "2.5.0",
@@ -11,7 +11,7 @@
     "torch": "2.12.1"
   },
   "rows": 520,
-  "results_sha256": "27438db70af3240524855e59c4a14d3fb63bf6fca2d2002cdcb1ac354559909b",
+  "results_sha256": "4f3642005e383b07826c3f36c888485005d710f15fb2773a6295d672f6c9af4d",
   "layer": "1.5",
   "model_kind": "rnn"
 }

results/collapse/resolved_config.yaml

@@ -1,8 +1,8 @@
-experiment: N1_collapse_in_weights
+experiment: collapse_in_weights
 seed: 20260704
 n_replicates: 5
 source_config:
-  experiment: N1_collapse_in_weights
+  experiment: collapse_in_weights
   kind: gen_lineage
   seed: 20260704
   n_replicates: 5
@@ -46,7 +46,7 @@ source_config:
     - 0.05
     - 0.1
   output:
-    dir: results/N1
+    dir: results/collapse
 grid:
 - label:
     g: 0.0

results/grounding/manifest.json

@@ -1,7 +1,7 @@
 {
-  "experiment": "N2_grounding_phase_boundary_neural",
+  "experiment": "grounding_phase_boundary",
   "master_seed": 20260704,
-  "git_commit": null,
+  "git_commit": "840b6b00b35ea3f69ef7e0f531914986f88d74a5",
   "python": "3.14.5",
   "libraries": {
     "numpy": "2.5.0",
@@ -11,7 +11,7 @@
     "torch": "2.12.1"
   },
   "rows": 1085,
-  "results_sha256": "93590677221955189814ccf044b9dc8aee36b026e350c9dea7e8d23b137e514b",
+  "results_sha256": "ca87a339c207adb50953df0f81297fed24d24d98b71e2911709f9708b00ede2d",
   "layer": "1.5",
   "model_kind": "rnn"
 }

results/grounding/resolved_config.yaml

@@ -1,8 +1,8 @@
-experiment: N2_grounding_phase_boundary_neural
+experiment: grounding_phase_boundary
 seed: 20260704
 n_replicates: 5
 source_config:
-  experiment: N2_grounding_phase_boundary_neural
+  experiment: grounding_phase_boundary
   kind: gen_lineage
   seed: 20260704
   n_replicates: 5
@@ -49,7 +49,7 @@ source_config:
     - 0.1
     - 0.2
   output:
-    dir: results/N2
+    dir: results/grounding
 grid:
 - label:
     g: 0.0