feat(analytics): build-time bake + telemetry depth (#336)

Bake PostHog + Sentry into the published Docker image (SNAPOTTER_ANALYTICS
build arg, codegen script). Delete entire consent system. Move event emission
to BullMQ worker. Add cross-tier identity stitching, Sentry performance
tracing on both tiers, frontend funnel events. Fix stateful regex bug.

86 files changed, 1593 insertions(+), 3747 deletions(-)

tests/unit/api/tool-factory-route.test.ts

@@ -261,6 +261,7 @@ function createMockRequest(opts: {
         for (const p of parts) yield p;
       },
     }),
+    headers: {},
     log: { warn: vi.fn(), error: vi.fn(), info: vi.fn() },
   };
 }
@@ -599,6 +600,7 @@ describe("createToolRoute", () => {
             };
           },
         }),
+        headers: {},
         log: { warn: vi.fn(), error: vi.fn(), info: vi.fn() },
       };
 
@@ -644,6 +646,7 @@ describe("createToolRoute", () => {
             };
           },
         }),
+        headers: {},
         log: { warn: vi.fn(), error: vi.fn(), info: vi.fn() },
       };
 
@@ -677,6 +680,7 @@ describe("createToolRoute", () => {
             };
           },
         }),
+        headers: {},
         log: { warn: vi.fn(), error: vi.fn(), info: vi.fn() },
       };
 
@@ -709,6 +713,7 @@ describe("createToolRoute", () => {
             };
           },
         }),
+        headers: {},
         log: { warn: vi.fn(), error: vi.fn(), info: vi.fn() },
       };