fix(ci): address PR review — filter comments, trim whitespace, warn on missing scripts

Address all review comments from Hoshe and Tyre on PR #27:
- Remove 2>/dev/null from pre-pr-fixtures (critical: swallowed errors)
- Remove dead _file_type function
- Check 4: error on districts with no locations declared
- Check 5: print advisory message when skipping
- Check 8: cross-file line ID uniqueness (not just per-file)
- Check 9: document D-034 asymmetric relationships in docstring
- Document regex fallback rationale in _scan_knowledge
- Add D-035 decision trace to schema descriptions
- Use concrete protocol version in DEVOPS.md example
- Amend D-035 with focused (9th mood) and greeting (14th situation)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tooling/validate-content

@@ -82,17 +82,6 @@ def _load_yaml(path: Path) -> dict | list | None:
         return None
 
 
-def _file_type(path: Path) -> str | None:
-    """Determine content type from path (npc, dialogue, monologue, district, triangle)."""
-    rel = path.relative_to(CONTENT_DIR)
-    for part in reversed(rel.parts[:-1]):
-        if part in ("npcs", "dialogue", "monologue", "triangles", "locations"):
-            return part
-    if path.name == "district.yaml":
-        return "district"
-    return None
-
-
 def _district_dir(path: Path) -> Path | None:
     """Find the district directory containing this file."""
     parts = path.resolve().parts
@@ -162,7 +151,8 @@ class ContentIndex:
                 continue
             data = _load_yaml(path)
             if not data or not isinstance(data, dict):
-                # Try line-by-line grep for fact_id definitions
+                # Stub catalogs (comment-only or flat key-value) don't parse
+                # as dicts. Fall back to regex extraction of fact_id lines.
                 try:
                     with open(path) as f:
                         for line in f:
@@ -289,7 +279,12 @@ class ContentIndex:
                 continue
             district_key = str(district_dir)
             district_locs = self.locations.get(district_key, set())
-            if district_locs and location not in district_locs:
+            if not district_locs:
+                print(f'XREF ERROR: dialogue location "{location}" references district with no locations declared')
+                print(f"  In: {_rel(path)}")
+                print(f"  District: {_rel(district_dir / 'district.yaml')}")
+                errors += 1
+            elif location not in district_locs:
                 print(f'XREF ERROR: dialogue location "{location}" not in district')
                 print(f"  In: {_rel(path)}")
                 print(f"  District locations: {', '.join(sorted(district_locs))}")
@@ -299,7 +294,7 @@ class ContentIndex:
     def _check_5_fact_ids(self) -> int:
         """Check that all referenced fact_ids resolve to knowledge catalogs."""
         if not self.fact_ids:
-            # Advisory mode: catalogs not populated yet
+            print("  Check 5 (fact_ids): SKIPPED — no canonical fact_ids in knowledge catalogs yet")
             return 0
 
         errors = 0
@@ -414,31 +409,46 @@ class ContentIndex:
         return warnings
 
     def _check_8_dialogue_line_ids(self) -> int:
-        """Check that dialogue line IDs are unique within each file."""
+        """Check that dialogue line IDs are unique across all dialogue files."""
         errors = 0
+        # Cross-file uniqueness: same line ID in two files is an error
+        global_seen: dict[str, Path] = {}
         for path, data in self.dialogue_files:
             lines = data.get("lines", [])
             if not isinstance(lines, list):
                 continue
-            seen: dict[str, int] = {}
+            local_seen: dict[str, int] = {}
             for i, line in enumerate(lines, 1):
                 if not isinstance(line, dict):
                     continue
                 line_id = line.get("id")
                 if not line_id:
                     continue
-                if line_id in seen:
+                # Per-file duplicate
+                if line_id in local_seen:
                     print(f'XREF ERROR: duplicate dialogue line id "{line_id}"')
                     print(f"  In: {_rel(path)}")
-                    print(f"  First: line {seen[line_id]}")
+                    print(f"  First: line {local_seen[line_id]}")
                     print(f"  Duplicate: line {i}")
                     errors += 1
                 else:
-                    seen[line_id] = i
+                    local_seen[line_id] = i
+                # Cross-file duplicate
+                if line_id in global_seen and global_seen[line_id] != path:
+                    print(f'XREF ERROR: dialogue line id "{line_id}" used in multiple files')
+                    print(f"  First: {_rel(global_seen[line_id])}")
+                    print(f"  Also in: {_rel(path)}")
+                    errors += 1
+                elif line_id not in global_seen:
+                    global_seen[line_id] = path
         return errors
 
     def _check_9_bidirectional_relationships(self) -> int:
-        """Check that NPC relationships have reciprocal entries."""
+        """Check that NPC relationships have reciprocal entries.
+
+        WARNING severity: asymmetric relationships are valid by design (D-034
+        allows one-directional awareness). This check flags them for review,
+        not as errors."""
         warnings = 0
         # Build map: canonical_id -> set of relationship targets
         npc_rels: dict[str, set[str]] = {}