docs(prd): assign PRD number 0082

CI (prd-number-check) rejects unnumbered prd-new-*.md on merge to main.
Rename docs/prds/prd-new-trusted-agent-forge-identity.md to
0082-trusted-agent-forge-identity.md (0081 is claimed by #517/#519) and
update the in-repo 'PRD prd-new-trusted-agent-forge-identity' citations to
'PRD 0082'.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/unit/test_forge_identity.py

@@ -1,5 +1,5 @@
 """Unit: trusted agent forge identity & guidance
-(PRD prd-new-trusted-agent-forge-identity).
+(PRD 0082).
 
 Covers the net-new surface: agent `author`, agent `forge-accounts` (Gitea API
 URL validation + host token reference), the repo→forge association resolved at

tests/unit/test_manifest_agent_git_user.py

@@ -1,5 +1,5 @@
 """Unit: agent-owned identity via `author` (PRD
-prd-new-trusted-agent-forge-identity).
+0082).
 
 Identity is agent-only now: an agent file declares an `author` block
 (name + email, both required) and at `ManifestIndex.load_for_agent()`

tests/unit/test_manifest_extends.py

@@ -132,7 +132,7 @@ class TestExtendsEnvMerge(unittest.TestCase):
 class TestExtendsGitMerge(unittest.TestCase):
     """git-gate.repos merges by name, with same-name child entries
     merging field-by-field (child wins). Bottles no longer carry a user
-    identity (PRD prd-new-trusted-agent-forge-identity), so only repos
+    identity (PRD 0082), so only repos
     merging is meaningful across extends chains."""
 
     _GIT_ENTRY_A = {"url": "ssh://git@host-a/a.git", "key": {"provider": "static", "path": "/dev/null"}}
@@ -339,7 +339,7 @@ class TestExtendsEgressMerge(unittest.TestCase):
 
 class TestExtendsNoBottleUserIdentity(unittest.TestCase):
     """Bottles no longer carry a user identity (PRD
-    prd-new-trusted-agent-forge-identity): identity moved to the agent's
+    0082): identity moved to the agent's
     `author` block. `git-gate.user` on a bottle is rejected outright, and
     `git_user` is always empty across an extends chain."""
 

tests/unit/test_manifest_git_user.py

@@ -1,5 +1,5 @@
 """Unit: agent `author` identity -> bottle.git_user (PRD
-prd-new-trusted-agent-forge-identity).
+0082).
 
 Identity moved off `git-gate.user` (bottle) onto the trusted agent's
 `author` block. At `load_for_agent` the agent's author populates the

tests/unit/test_manifest_lazy_loader.py

@@ -72,7 +72,7 @@ class _LazyCase(unittest.TestCase):
 
 class TestAllAgentNamesLazy(_LazyCase):
     def test_cwd_agents_ignored_home_only(self) -> None:
-        # Agents are home-only (PRD prd-new-trusted-agent-forge-identity):
+        # Agents are home-only (PRD 0082):
         # a cwd agents/ dir is warned-and-ignored, so only the home agent
         # appears in all_agent_names.
         _write(self.home_cb / "bottles" / "dev.md", _BOTTLE_DEV)
@@ -100,7 +100,7 @@ class TestRequireAgentLazy(_LazyCase):
         self.resolve().require_agent("alpha")  # no raise
 
     def test_cwd_only_agent_not_selectable(self) -> None:
-        # Agents are home-only (PRD prd-new-trusted-agent-forge-identity):
+        # Agents are home-only (PRD 0082):
         # a cwd-only agent file is never selectable, so require_agent raises.
         _write(self.home_cb / "agents" / "alpha.md", _AGENT)
         _write(self.cwd_cb / "agents" / "beta.md", _AGENT)

tests/unit/test_manifest_md_load.py

@@ -111,7 +111,7 @@ class TestAgentFileParses(_ResolveCase):
 
 
 class TestCwdAgentIgnoredHomeWins(_ResolveCase):
-    """SC #3 (revised, PRD prd-new-trusted-agent-forge-identity): agents
+    """SC #3 (revised, PRD 0082): agents
     are home-only. A cwd agent file with the same name as a home agent no
     longer wins — it is warned-and-ignored, so the HOME agent's prompt is
     used and the home bottle stays intact."""
@@ -141,7 +141,7 @@ class TestCwdAgentIgnoredHomeWins(_ResolveCase):
 class TestCwdBottlesIgnored(_ResolveCase):
     """SC #4: a bottles/ dir under $CWD is ignored (with a warn).
     The home bottle still wins. Under
-    PRD prd-new-trusted-agent-forge-identity a cwd agents/ dir is also
+    PRD 0082 a cwd agents/ dir is also
     ignored, so $CWD contributes nothing — the filesystem layout is the
     trust boundary."""